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Published By:

ATARI, INC.

1265 Borregas Avenue
P.O. Box 427

Sunnyvale, California 940S6

E.C.R. NO.

003ft

ENGINEERING

CHANGE REQUEST

PAET NO.

DATE

REQUESTER

REV.

6/21/83

S. Doyle

FD100127

ATARI

ATARI, INC.

Consumer Product Service
845 W. Maude Avenue
Sunnyvale, CA 94041

IA m?iSSo o ms?i Mcdai

a 5J»sm

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Replace pages 1-1, 1-3, 1-7.

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Insert SECTION 3A, 2-PORT MODEL 5200 TESTING, pages 3A-1, through 3A-9,
after SECTION 3.

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E.C.N. NO.

ATARI

ADVANCED VIDEO ENTERTAINMENT SYSTEM
MODEL 520 0™

FIELD SERVICE MANUAL

Atari believes that the information described in this manual is accurate and reliable,
and much care has been taken in its preparation. However, no responsibility, financial
or otherwise, shall be accepted for any consequences arising out of the use of this
material. Information contained herein is subject to change. Revisions may be issued
to advise of such changes and/or additions.

Correspondence regarding this document should be forwarded to Manager of Technical
Support, Consumer Product Service, Atari Incorporated, 1272 Borregas, Sunnyvale,
California 94086.

TABLE OF CONTENTS

Section Title Page

INTRODUCTION vii

1 THEORY OF OPERATION 1-1

Overview 1-1

Model 5200 Console 1-1

Four-Port Universal PCB differences 1-1

Two-Port Universal PCB differences 1-2

Outer Case 1-3

RF Shield 1-4

PC Board 1 -4

Microprocessor Chip - MPU 1-4

Alphanumeric Television Interface

Controller (ANTIC) 1-5

Graphic Television Interface Adaptor (GTIA) 1-6

Pot Keyboard Integrated Circuit (POKEY) 1-6

Switchbox 1 -7

Game Controller 1-8

2 SILKSCREENS AND SCHEMATICS 2-1

3 4-PORT MODEL 5200 TESTING 3-1

Equipment Requirements 3-1

Testing with the Diagnostic

Cartridge (Version 1.1) 3-1

Overview of Tests 3-1

Initialization 3-1

Power-up Screen 3-3

Solid (Black) Colored Screen or

Vertically Lined Screen 3-3

Snowy Screen 3-4

Warped-Ragged Picture 3-4

Color Bar Test 3-4

Gray Bar Test 3-5

Any Video Screen 3-6

Pokey Adjust 3-7

Error Summary 3-8

RAM Test 3-10

Verify ROM 3-10

Port Test 3-10

Tone Test 3-10

CX5200 Field Service Manual iii Changed by

ECN #0036
6/21/83

TABLE OF CONTENTS (Continued)

Section

Title

Page

3 A

2-PORT MODEL 5200 TESTING

3A-1

Equipment Requirements

3A-1

Testing with the Diagnostic Cartridge
(Version 1.1)

3A-1

Overview of Tests

3A-1

Initialization

3A-1

Power-Up Screen

3A-2

Solid Colored (Black) Screen or

Vertically Lined Screen

3A-3

Snowy Screen

3A-3

Warped-Ragged Picture

3A-3

Color Bar Test

3A-4

Gray Bar Test

3 A-5

Any Video Screen

3A-6

Verify OS ROM

3A-7

Tone Test

3A-7

POKEY (Port) Test

3 A-8

RAM Test

3A-8

POKEY Adjust Test

3A-9

POKEY Softfire Test

3A-10

4-PORT 5200 DIAGNOSTIC FLOWCHART

4-1

Overview

4-1

The Swap-out Procedure

4-1

Replace in Order

4-1

ATARI Repair Hotline

4-1

4 A

2-PORT 5200 DIAGNOSTIC FLOWCHART

4A-1

Swapout Procedure

4A-1

Replace In Order

4A-1

ATARI Repair Hotline

4A-1

4-PORT 5200 SYMPTOM CHECKLIST

5-1

5 A

2-PORT 5200 SYMPTOM CHECKLIST

5A-1

GAME CONTROLLERS

6-1

Overview

6-1

Joystick

6-2

Key Pad

6-2

Fire Buttons

6-2

Select Buttons

6-2

CX5200 Field Service Manual

TABLE OF CONTENTS

Section

Title

Page

Controller Testing

6-3

Controller Testing without a Model 5200 Console

6-5

Failures

6-6

POT Arm Alignment Procedure

6-8

Controller Disassembly/Assembly

6-10

CX52 Game Controller Schematic

6-13

CX53 Trakball

7-1

PARTS LIST

8-1

SERVICE BULLETINS

9-1

LIST OF ILLUSTRATIONS

Figure

Title

Page

1-1

Model 5200 Console

1-2

Channel 2-3 Switch and Future

Development Access

1-3

MPU Pin Assignments

1-4

ANTIC Pin Assignments

1-5

GTIA Pin Assignments

1-6

POKEY Pin Assignments

1-7

2-1

5200 Motherboard

2-3

2-2A

5200 Motherboard Schematic (A)

2-4

2-2B

5200 Motherboard Schematic (B)

2-4A

2-2C

5200 Motherboard Schematic (C)

2-4B

2-3

4 -Port Silkscreen

2-5

2-4

4 -Port Schematic (1 of 4)

2-7

2-4

4-Port Schematic (2 of 4)

2-9

2-4

4-Port Schematic (3 of 4)

2-11

2-4

4-Port Schematic (4 of 4)

2-13

2-5

Trakball Silkscreen

2-15

2-6

Trakball Keypad Schematic

2-15

2-7

Trakball Schematic

2-17

2-8

5200 2-Port Schematic (1 of 5)

2-19

2-9

5200 2-Port Schematic (2 of 5)

2-21

2-10

5200 2-Port Schematic (3 of 5)

2-23

2-11

5200 2-Port Schematic (4 of 5)

2-25

2-12

5200 2-Port Schematic (5 of 5)

2-27

2-13

5200 2-Port Silkscreen

2-29

CX5200 Field Service Manual v Changed by

ECN #0036
6/21/83

SESESIEEE mu SEEKS |

TABLE OF CONTENTS

LIST OF ILLUSTRATIONS

Title

Page

Color Bars Screen

3-5

Gray Bar Screen

3-6

Any Video Screen

3-7

Pokey Adjust Test Screen

3-8

Error Summary

3-8

Color Bars Screen

3A-4

Gray Bar Screen

3A-5

Any Video Test Screen

3A-6

RAM Test Screen

3A-9

POKEY Adjust Test Screen

3A-9

CX52 Game Controller

6-1

Joystick Positions 1 <5c 2

6-3

Cable Connector Pins (End View)

6-6

Pot & Arm Assembly

6-8

Controller Top (Underside)

6-9

Select Switch Bezel Removal

6-10

Controller Knob Removal

6-11

Pot Arm Positions for Assembly

6-11

CX52 Game Controller Schematic

6-13

Top Cover Assembly

7-2

Bottom Cover Assembly

7-3

Trakball Block Diagram

7-6

Diagonal or Circular Motion

7-8

Cue Ball Support

7-27

Top Cover (Underside)

7-28

Main PC Board

7-29

LIST OF TABLES

Table

Title

Page

3-1

Diagnostic Error Codes

3-9

6-1

Game Controller Continuity Check

6-7

7-1

Keyboard Test Display

7-7

CX5200 Field Service Manual

INTRODUCTION

The Atari Advanced Video Entertainment System (Model 5200) Field Service Manual is a
reference guide for you, the service technician.

This Field Service Manual is organized in twelve sections:

• THEORY OF OPERATION - Overview of how the Model 5200 works and what
its basic assemblies look like.

• SILKSCREENS AND SCHEMATICS - Electrical drawings and layouts of all of
the Model 5200 printed circuit boards.

• 4-PORT 5200 TESTING - Review of Diagnostic Tests available for diagnosing
4-Port Model 5200 problems.

• 2-PORT 5200 TESTING - Review of Diagnostic Tests available for diagnosing
2-Port Model 5200 problems.

• 4-PORT 5200 DIAGNOSTIC FLOWCHART - Aids for troubleshooting the 4-
Port Model 5200.

• 2-PORT 5200 DIAGNOSTIC FLOWCHART - Aids for troubleshooting the 2-
Port Model 5200.

• 4-PORT 5200 SYMPTOM CHECKLIST - Failure information to assist the
experienced technician arrive at a rapid diagnosis of 4-Port Model 5200
problems.

• 2-PORT 5200 SYMPTOM CHECKLIST - Failure information to assist the
experienced technician arrive at a rapid diagnosis of 2-Port Model 5200
problems.

• GAME CONTROLLERS - Overview of hand controller construction with
electrical schematics and recommended test and repair procedures.

• TRAKBALL CONTROLLER - Overview of trakbail construction with
electrical schematics and recommended test and repair procedures.

• PARTS LIST - Detailed breakdown of all parts used in the 4-Port and 2-Port
models.

• SERVICE BULLETINS - Section to be used to hold Field Change Orders,
Upgrade Bulletins and Tech Tips.

This manual is designed for use by both the experienced and inexperienced service
technician. The Diagnostic Flowcharts (Sections 4 and 4 A) provide detailed procedures
for technicians not completely familiar with the 5200 models. The Symptom Checklists
(Sections 5 and 5A) provide a rapid reference for the more experienced technician.

vii

CX5200 Field Service Manual

Changed by
ECN #0036
6/21/83

SECTION 1

THEORY OF OPERATION

Overview

The ATARI Advanced Video Entertainment System (Model 5200) is an advanced
microcomputer. It receives input from the game controllers, Read-Only-Memory
(ROM) cartridges and other peripherals, and displays this input on a T.V. screen. A
maximum of four players may play at one time.

The Model 5200 is composed of the console, switchbox and game controllers. The
following paragraphs provide a general discussion of each of these items and their
component parts. For a detailed discussion of the Game Controller see SECTION 6.

Model 5200 CONSOLE

The Model 5200 console is composed of an outer plastic case which houses the PC
board and its RF Shield. Figure 1-1 shows the console and its parts.

There are currently three different PC Boards being used in Model 5200 consoles.
Some models contain the original 4-port PC Board, number CA01 8087. Other consoles
contain a 4-port universal PC Board, number CA020108. A third PC Board with only
two player ports, number CA021374, is also available. Unless otherwise specified, the
references in this manual pertain to the original 4-port PCB, number CA018087. The
specific differences of the 4-port universal PCB and the 2-port universal PCB are
called out below.

Four-Port Universal PCB differences:

External

The ATARI serial number on the bottom of the unit will have a + as its third
designator. For example:

CITE CODE DATE

A T | 2 1 3

4-PORT
DESIGNATOR

The chip designators have been changed. All chips are designated A
instead of U.

Internal

2) Two 74LS244 ICs (U4 and U15) were removed from the PC Board.

3) Two 74LS244 ICs (U14 and U28) were replaced with a 74LS125 (A14) and a
74LS51 (A15).

4) Provisional circuitry for future expansion has been added in order to
accommodate the VCS^M cartridge adaptor.

CX5200 Field Service Manual

Changed by
ECN #0036
6/21/83

Two-Port Universal PCB differences:

1) All of the 4-port universal board differences listed above are included on
the 2-port universal PCB.

2) Ports 3 and 4 and their associated discrete components have been removed.

3) ICs A12 and A13 have been removed.

4) The automatic switchbox has been replaced with a manual switchbox and
the RF cable has been replaced with the standard RF cable.

5) The power adaptor plugs directly into the rear of the console instead of
plugging into the switchbox.

Figure 1-1. Model 5200 Console (4-PORT)

CX5200 Field Service Manual

1-2

Outer Case

The outer case consists of a bottom and a top plastic cover which are held together by
five Phillips-head screws.

At the rear of the bottom plastic cover (Figure 1-2) is:

a) an opening for access to the channel 2-3 switch

b) a removable door which allows access for future development.

In the base is a cable wrap post for RF cable storage.

Channel 2-3

Future Development Access

Figure 1-2. Channel 2-3 Switch and

Future Development Access

The top plastic cover provides:

1) openings at the front for the four player ports

2) the power switch cover

3) the power ON /OFF switch

4) a storage area at the rear for two game controllers. The hinged cover for
this area comes off as a separate piece when the top cover is disassembled.

RF Shield

An aluminum shield covers the PC Board and prevents the PC Board from generating
interference on the T.V. screen.

CX5200 Field Service Manual 1-3 Changed by

ECN #0036
6/21/83

PC Board

The console you are servicing may contain either the original PC Board Number
CA018087 or the newer PC Boards Numbers CA020108 or CAQ21374. See Page 1-1 of
this manual for an explanation of the three board's differences.

The PC Board consists of:

• 28 Integrated Circuit Chips on PC Board Number CAQ18087; 26 Integrated
Circuit Chips on PC Board Number CA020108; 24 Integrated Circuit Chips
on PC Board Number CA021374.

• a cartridge socket

• an RF module

• various discrete components
The major chips on the PC Board are:

Microprocessor Chip - MPU

The microprocessor (MPU) is the brain of the 5200. It makes the major decisions
based on information from the ROM cartridge and the Random Access Memory.
Figure 1-3 shows the pin assignments for the MPU.

ROY

I5q

YNC

VCC

□

RES

□

*0 UN)

□

B/W

HALT

B/W

□>

6502

□

0»

1»

A16

A14

A13

A12

vss

Figure 1-3. MPU Pin Assignments
CX5200 Field Service Manual 1-4

Alphanumeric Televison Interface Controller (ANTIC)

The primary function of the Alphanumeric Television Interface Controller (ANTIC)
chip is to get data from memory, independent of the processor, for display on the
video screen.

Figure 1-4 shows the pin assignments for the ANTIC.

GROUND VS5

GTIA DATA AN0

GT1A DATA ANt

Light Pen LF

GTIA DATA AN2

Hot Connected RNM1

Interrupt Output NM1

Refresh REF—

HALT HALT

Address Bus A3

Address Bus A2

Address Bus A1

Address Bus A0

Read/Write R/'V

Ready RDY

Address Bus A10

Address Bus A12

Address Bus A13

Address Bus A14

Address Bus A15

ANTIC

D4 Data Bus

D5 Data Bus

D6 Data Bus

D7 Data Bus

RE.S Reset

FPh# Fast Phase 0 Clock

Ph# Phase 0 Clock

D3 Data Bus

D2 Data Bus

D1 Data Bus

Dd Data Bus

Ph2 Phase 2 Clock

A4 Address Bus

A 5 Address Bus

A 6 Address Bus

A7 Address Bus

A8 Address Bus

A9 Address Bus

All Address Bus

VCC 5V Power

Figure 1-4. ANTIC Pin Assignments

CX5200 Field Service Manual

1-5

Graphic Television Interface Adaptor (GTIA)

The Graphic Televison Interface Adaptor (GTIA) chip retrieves graphics data from
memory via the ANTIC DMA process. This data is routed to the GTIA graphics
registers. Figure 1-5 shows the pin assignments for the GTIA.

Address Bus

A)3

Ground

vss

Data Bus

D $

Trigger 0

Tfi

Trigger 1

Trigger 2

Trigger 3

Port Select

S $

Port Select

+ CAV Control

Not Used

Not Connected

Color Delay

DEL

Alphanum. Data 0

A NO

Alphanum. Data 1

AN1

Alphanum. Data 2

AN2

GTIA

Address Bus

Data Bus

R/W

Read/Write

CS1

Chip Select 1

LUM 0

Luminance o Output

J02

Phase 2 Input

P^O

Clock Out

OSC

Oscillator Input

VCC

Power

halt

HALT

CSYNC

Output Sync

LUM 3

Luminance 3 Output

LUM 2 •

Luminance 2 Output

LUM 1

Luminance 1 Output

COL

Color

Figure 1-5. GTIA Pin Assignments

POT Keyboard Integrated Circuit (POKEY )

The Pot Keyboard Integrated Circuit (POKEY) chip provides the interface between the
game ports and the microprocessor. It also contains four semi-independent audio
channels, each with its own frequency, noise, and volume control. Figure 1-6 shows
the pin assignments of the POKEY.

CX5200 Field Service Manual

1-6

Ground

VSS

Data Bus

AUDIO

Audio Out

Data Bus

Address Bus

Data Bus

Address Bus

Phase 2 Clock

Address Bus

Pot Scan

Address Bus

Pot Scan

R/W

Read/Write Control

Pot Scan

POKEY

CSl

Chip Select

Pot Scan

c5o

ChiD Select

Pot Scan

IRQ

InterruDt Request

Pot Scan

SOD

Serial Output Data

Pot Scan

OCLK

Serial Output Clock

Pot Scan

BCLK

Bidirectional Clock

Softfire

KR2

KR1

Keyboard Bead

5 V Power

vcc

SID

Serial Input Data

Not Connected

Keyboard Scan

Figure 1-6. POKEY Pin Assignments

SWITCHBOX

A switchbox is connected and mounted to the back of the television set. The
switchbox that is used with the 4-Port Models is different from other switchboxes
manufactured by Atari and from the 2-Port Model 5200. These differences include:

1) power for the Model 5200 supplied through the switchbox

2) two Select Switch functions. The two functions are:

NORMAL - Allows the Model 5200 to automatically switch between the
television and the game when the Model 5200 ON/OFF switch is pressed.

STANDBY - Enables television viewing while the Model 5200 is turned on.

CX5200 Field Service Manual

1-7

Changed by
ECN #0036
6/21/83

GAME CONTROLLER

The game controller supplied with the Model 5200 is composed of an analog joystick, a
12 -key Keypad, two separate Fire Buttons on each side, and three Select Buttons. The
game controller is discussed in detail in Section 6.

SUMMARY

The Model 5200 is an advanced microcomputer which receives input from the Game
Controllers, Read-Only-Memory (ROM) cartridges, and other peripherals. The console
PC Board is housed within an outer case and contains four major chips which allow for
interaction between the game and the player. They are: the Microprocessor (MPU),
the Alphanumeric Television Interface Controller (ANTIC), the Graphic Television
Interface Adaptor (GTIA), and the POT Keyboard Integrated Circuit (POKEY).

The console, switchbox, and Game Controllers make up the Model 5200 System which
is addressed in the remainder of this manual.

CX5200 Field Service Manual

1-8

SECTION 2

SILKSCREENS AND SCHEMATICS

On the following pages are representative silkscreens and schematics for the Model
5200. Minor variations in design may be encountered depending on the production date
of the unit, but these schematics provide all details required for an in-depth
understanding of all Model 5200 units.

CX5200 Field Service Manual

2-1

Make pen and ink corrections to schematics on pages 2-4 and 2-4B as directed below.

CX5200 Field Service Manual 2-2

-€hd-

: 0

n»ppli § 8 § 8881080

ixilils #PS

ATARI 5200 SUPER GAME

2-3

5200 Motherboard Silkscreen

Figure 2-1

ATARI 5200 Super Game

2-4

5200 Motherboard Schematic (A)

Figure 2-&A

isggsilgisififiss,

NOTES. UNLESS OTHERWISE SPECIFIED:

ATARI 5200 Super Game

2-4A

5200 Motherboard Schematic (B)

Figure 2-2B

ATARI 5200 Super Game

Figure 2-3. 4-Port Silkscreen

2-5

1 of 4

SWTTCHED

4 of H

15 pin game
cable connector

Note: If sockets or components

are replaced, trim leads
in shaded areas as close
to PC Board as possible.

Figure 2-5. Trakball Silkscreen

Figure 2-6. Keypad Schematic

Figure 2-7. Trakball Schematic

2-17

Page 2-23

Figure 2-10. 5200 2-PORT Schematic
3 of 5

Figure 2-11. 5200 2-PORT Schematic
4 of 5

SWITCHED

UNREG

Figure 2-12. 5200 2-PORT Schematic
5 of 5

Page 2-27

SECTION 3

4-PORT MODEL 5200 TESTING

EQUIPMENT REQUIREMENTS

You require six basic pieces of equipment in order to analyze failures in the Model
5200. These items include:

• 15 MHz oscilloscope

• Diagnostic Cartridge (version 1.1)

• Model 5200 Port Board (Loop Back Board)

• CX5200 Field Service Manual

• color T.V. set (properly adjusted)

• voltmeter

TESTING WITH THE DIAGNOSTIC CARTRIDGE (VERSION 1.1)

All tests are reviewed in this section. If applicable, a Flowchart Entry Point is
given. If a failure occurs, go to the flowchart indicated and continue
troubleshooting.

OVERVIEW OF TESTS

The Diagnostic Cartridge (Version 1.1) contains a variety of test routines to assist
you in identifying the source of problems in the Model 5200. The test cartridge is
used in conjunction with the equipment listed at the beginning of this section. The
tests available in the cartridge are:

• Color Bar

• Gray Bar

• Any V ideo

• Pokey Adjust

• RAM

• Verify OS ROM

• Port

• Tone

INITIALIZATION

To prepare the Model 5200 for testing, perform the following steps in the order
given:

• Connect the switchbox to the VHF terminal(s) on the back of the T.V. Set.

• Plug the power adaptor into the opening on the switchbox marked Power.

• Plug the RF cable from the console into the opening on the switchbox
marked Game. Be sure the select switch on the switchbox is set to the
NORMAL position.

• Plug the Model 5200 Port Board into the player ports.

• Insert the Diagnostic Cartridge (Version 1.1)

• Turn on the T.V. Set and the Model 5200.

CX5200 Field Service Manual 3-1 Changed by

ECN #0036
6/21/83

The Model 5200 tests are run using the Port Board (Loop Back Board) which
automatically cycles through all of the tests. If a test fails: turn the unit off, remove
the Port Board, plug a game controller into Port 1 , and turn the unit back on. You can
select any of the tests manually by pressing the proper key followed by the start key.

NOTE: The Diagnostic Cartridge will cycle automatically only if the Port Board
is inserted before the unit is turned on.

Press the * or # key followed by the start key to print this menu on the screen.

l=Any Video
2=Color Bars
3=Gray Bars
4=Port Test
5=Pokey Adjust
6=Tone Test

7=Ram Test
8=Verify OS ROM
9=Display Options
0=Examine

Options 9 and 0 are not used at this time.

The following pages show the tests as they appear with the Port Board plugged in.

If a test fails, go to the Flowchart Entry Point indicated for that test and begin
troubleshooting.

CX5200 Field Service Manual

3-2

POWER-UP SCREEN

The Power-up screen appears in a few seconds. It displays information about the inner
workings of the unit. This screen shows:

• The type of TIA in the unit. NTSC appears if the GTIA is the proper one
for that unit. If PAL appears, replace with a GTIA from your kit.

• The rev of ROM in the unit. (Not important at this time.)

After the initial power-up, this screen does not automatically appear again.

One of the following indicates a failure.

• Solid Colored (Black) Screen or Vertically Lined Screen

• Snowy Screen

• WARPED - Ragged Picture

Solid Colored (Black) Screen or Vertically Lined Screen

If a solid colored (Black) or vertically lined screen appears, the unit is suffering a
catastrophic failure. This means that the unit is not functioning well enough to even
put up a simple display.

Diagnostic Flowchart Entry Point: Pg. 4-2.

Snowy Screen

If, when turned on the unit displays no modulation on the screen, the failure is
probably in the power circuitry. However, first check the following:

• Check that the select switch on the switchbox is set to the NORMAL
position.

• Check the power adaptor using a standard voltmeter.

Diagnostic Flowchart Entry Point: Pg. 4-9.

CX5200 Field Service Manual

3-3

Warped - Ragged Picture

In this failure, the power-up screen appears bent to one side with a ragged edge. The
picture may roll or slide down and to the left of the screen. This means that the sync,
signal broadcast by the GTIA is probably not functioning. Another possible cause is
that the unit is not set on the same channel as the T.V. set. Check this before going to
the flowcharts.

Diagnostic Flowchart Entry Point: Pg. 4-13.

COLOR BAR TEST

• Purpose: To test the GTIA chip and associated color circuitry for correct
operation.

• Format: A screen of horizontal color bars displays (see Figure 3-1). The
screen should be steady and unchanging. A gray or blue horizontal
reference line runs across the screen about three bars from its bottom.
This reference line is thinner than the bars around it. R8 should be
adjusted so the bars immediately above and below the reference line are
within one shade of each other. Proper operation of the unit is indicated
by being able to make this adjustment and by consistent color within the
entire span of each bar on the screen. Minor glitches on the edges of the
color bars are acceptable. Leave this test on for at least ten seconds in
order to catch any intermittent problems, such as a bar momentarily
changing colors or blanking out.

CX5200 Field Service Manual

3-4

NOTE: This figure is a black and white representation of a color television screen.

SAME COU3R

REFERENCE BAR

Figure 3-1 Color Bars Screen
Diagnostic Flowchart Entry Point: Pg. 4-14.

GRAY BAR TEST

Purpose: To test the function of the luminescence lines (LMO , LM1, LM2)
from the GTIA chip.

Format: Eight horizontal gray bars are displayed, going from black at the
top to white at the bottom in even steps (see Figure 3-2). The screen
should be steady and unchanging. These lines may have minor glitches on
their edges. A thin white line always appears just over the top (black)
bar. No color should appear anywhere on the screen. The areas above the
top (black) bar and below the bottom (white) bar are of no importance to
the test. This test should be left on for at least ten seconds to ensure
that there is no "flashing" of any color or shifting of the gray bars.

CX5200 Field Service Manual

3-5

Figure 3-2. Gray Bar Screen

Diagnostic Flowchart Entry Point: Pg. 4-16.

ANYVIDEO SCREEN

• Purpose: To test the video generation of the GTIA and ANTIC chips.

• Format: The screen should have a black background with eight vertical
bars. Half of the vertical bars should be narrow, and the other half much
wider. A horizontal bar should appear across the top of the screen. From
left to right, the shade of color on the horizontal bar should change. On
the right of the bar, two Vs should be displayed, right side up.

CX5200 Field Service Manual

3-6

NOTE: Figure 3-3 is a black and white representation of a colored screen.

Figure 3-3. Any Video Test Screen
If the Any Video test fails, swapout U3, U5.

POKEY ADJUST

• Purpose: To check the value of the pot line for the controller ports.

• Format: Adjust R132 to make the value in Port 1, HOR position read 112

+ 1. All other values should read between 100 and 124.

CX5200 Field Service Manual

3-7

NOTE: Figure 3-4 shows a sample Pokey Adjust screen. The values on your screen
may differ from those shown in Figure 3-4.

HOR

VERT

112

107

115

118

Figure 3-4. Pokey Adjust Screen.

Diagnostic Flowchart Entry Point: (Refer to Table 3-1, Diagnostic Error Codes).

ERROR SUMMARY

Errors during the RAM, PORT, and verify OS ROM Test are displayed on the matrix
shown in Figure 3-5.

(Max. 99)

Figure 3-5. Error Summary.

Table 3-1 shows the defective component and/or the flowchart entry point which
corresponds to the Failure Code number on the Error Summary.

CX5200 Field Service Manual

3-8

Table 3-1

Diagnostic Error Codes

lilure Code

Failure

RAM - Chip 1 - U25

RAM - Chip 2 - U24

RAM - Chip 3 - U23

RAM - Chip 4 - U22

RAM - Chip 5 - U21

RAM - Chip 6 - U20

RAM - Chip 7 - U19

RAM - Chip 8 - U18

Port 1 - Data - Keyboard

Port 2 - Data - Keyboard

Port 3 - Data - Keyboard

Port 4 - Data - Keyboard

Trigger 0

Trigger 1

Trigger 2

Trigger 3

Soft Fire 0

Soft Fire 1

Soft Fire 2

Soft Fire 3

Serial Port 0

Serial Port 1

Pot Line 0

Pot Line 1

Pot Line 2

Pot Line 3

Pot Line 4

Pot Line 5

Pot Line 6

Pot Line 7

O.S. ROM - U8

Reference Page ii

RAM Test, Pg. 3-10

Keyboard Troubleshooting
Pg.4-21

Trigger Line Trouble-
shooting, Pg. 4-19

Softfire Troubleshooting
Pg. 4-20

Not Used
Not Used

Pot Line Troubleshooting
Pgs. 4-17, 4-18

Verify OS ROM, Pg. 3-10

CX5200 Field Service Manual

3-9

RAM TEST

• Purpose: To test the 16K RAM chips for proper functioning.

• Format: This test takes approximately 10 seconds during which the screen
is solid black. At the end of this time period, if the test has failed, a
Failure Code number appears on the screen to signify which chip is
defective. Swap out the chip corresponding to the Diagnostic Error Code
(Table 3-1). If this does not solve the problem, swapout the chips U15,
U16, U17, and U28 for PCB //CA018087. For PCB #CA020108, swapout
A14, A15, A16 and A17.

No Diagnostic Flowchart Entry Point

VERIFY OS ROM

• Purpose: To test the OS ROM (U8) for proper functioning.

• Format: If error code 30 appears on the Error Summary (Figure 3-5) the
OS ROM chip is defective. Replace the defective chip and restart the test.

No Diagnostic Flowchart Entry Point

PORT TEST

• Purpose: This test checks the functions of the POKEY, GTIA and
associated PORT circuitry.

• Format: The test is done internally with failures appearing on the Error
Summary (Figure 3-5).

Diagnostic Flowchart Entry Point: (Refer to Table 3-1, Diagnostic Error Codes).

TONE TEST

• Purpose: To check the audio generation section of the POKEY (U7).

• Format: The screen prints at the bottom which register is being tested
(Register 4, 3, 2,1). A series of eight tones will sound on each register. The
first two tones may be inaudible but you can hear the speaker click.

Diagnostic Flowchart Entry Point: Pg. 4-27.

CX5200 Field Service Manual

3-10

SECTION 3 A

2-PORT MODEL 5200 TESTING
EQUIPMENT REQUIREMENTS

You require seven basic pieces of equipment in order to analyze failures in the Model
5200 2-port. These items include:

• 15 MHz oscilloscope

• Diagnostic Cartridge (version 1.1)

• 5200 Port Board (Loop Back Board)

• CX5200 Field Service Manual

• Color T.V. set (properly adjusted)

• Volt-ohm meter

• Known-good 5200 controller

TESTING WITH THE DIAGNOSTIC CARTRIDGE (VERSION 1.1)

All of the tests are reviewed in this section. If a test failure occurs, enter the
diagnostic flowchart where indicated and continue troubleshooting.

OVERVIEW OF TESTS

The Diagnostic Cartridge (Version 1.1) contains a variety of test routines to assist you
in identifying the source of problems in the 5200. The test cartridge is used in
conjunction with the equipment listed at the beginning of this section. The tests
available in the cartridge are:

• Color Bar

• Gray Bar

• Any Video

• Verify OS ROM

• Tone

• RAM

• Pokey Adjust

INITIALIZATION

To prepare the 5200 for testing, perform the following steps in the order given:

• Connect the switchbox to the VHF terminal(s) on the back of the T.V. set.

• Plug the power adaptor into the console.

• Plug the RF cable from the console into the opening on the switchbox
marked GAME. Be sure the select switch on the switchbox is set to the
GAME/COMPUTER position.

CX5200 Field Service Manual 3A-1

Changed by
ECN #0036
6/21/83

• Plug a game controller into port 1 of the 5200.

• Insert the Diagnostic Cartridge (Version 1.1).

• Turn on the T.V. (Select Channel 2 or 3) and the 5200.

Press the * * or # key followed by the start key to display this menu on the screen.

l=Any Video
2=Color Bars
3=Gray Bars
4=Port Test
5=Pokey Adjust
6=Tone Test

7= Ram Test
8=Verify OS ROM
9= Display Options
0=Examine

Test #4 and 0 are not used.

To run the tests press the proper numerical key on the 5200 controller and then press
START. To escape a test (except #5), press any key. To escape #5, POKEY ADJUST,
press the bottom fire button.

The following pages show the tests as they appear with the Port Board plugged in.

If a test indicates a failure, go to the Flowchart Entry Point indicated for that test
and begin troubleshooting.

POWER-UP SCREEN

The power-up screen displays information about the internal status of the unit. It
shows:

• The type of TIA in the unit. If the GTIA is the proper one for the unit,
NTSC appears. If PAL appears, replace the GTIA with one from your kit.

• The revision level of the ROM in the unit. (Not important at this time.)

If at power-up this screen does not appear, one of the following screens appears:

• Solid Colored (Black) Screen or Vertically Lined Screen

• Snowy Screen

• Warped - Ragged Picture

Proceed to the description of that failure which follows.

CX5200 Field Service Manual

3A-2

Solid Colored (Black) Screen or Vertically Lined Screen

If a solid colored (Black) or vertically lined screen appears, the unit is suffering a
catastrophic failure. This means that the unit is not functioning well enough to even
return a simple display.

Diagnostic Flowchart Entry Point: Pg. 4A-2.

Snowy Screen

If the screen displays no modulation, the failure is probably in the power circuitry.
However, first do the following:

• Check that the Select Switch on the switchbox is set to the
GAME/COMPUTER position.

• Check that the T.V. is set to Channel 2 or 3.

• Check the power adaptor using a standard voltmeter.

Diagnostic Flowchart Entry Point: Pg. 4A-10.

Warped - Ragged Picture

Flowchart Entry Point: Pg. 4A-13.

If the unit will not select a test when using a known-good controller, proceed to the
Diagnostic Flowchart.

Diagnostic Flowchart Entry Point: Pg. 4A-13.

CX5200 Field Service Manual 3A-3

Changed by
ECN #0036
6/21/83

COLOR BAR TEST

• Purpose: To test the GTIA chip and associated color circuitry for correct
operation.

• Procedure: Press key 2 followed by START.

• Format: A screen of horizontal color bars displays (see Figure 3A-1). The
screen should be steady and unchanging. A gray or blue horizontal
reference line runs across the screen two bars from the bottom of the
screen. This reference line is thinner than the bars around it. R8 should
be adjusted so the bars immediately above and below the reference line
are within one shade of each other. Proper operation of the unit is
indicated by being able to make this adjustment and by consistent color
within the entire span of each bar on the screen. Minor glitches on the
edges of the color bars are acceptable. Leave this test on for at least ten
seconds in order to catch any intermittent problems, such as a bar
momentarily changing colors or blanking out.

Diagnostic Flowchart Entry Point: Pg. 4A-14.

NOTE: This figure is a black and white representation of a color television screen.

Figure 3A-1. Color Bars Screen

CX5200 Field Service Manual

3 A -4

GRAY BAR TEST

• Purpose: To test the functioning of the luminescence lines (LM1, LM2,
LM3) from the GTIA chip.

• Procedure: Press key 3 followed by START.

• Format: Eight horizontal gray bars are displayed, going from black at the
top to white at the bottom in even steps (see Figure 3A-2). The screen
should be steady and unchanging. These lines may have minor glitches on
their edges. A thin white line always appears just over the top (black)
bar. No color should appear anywhere on the screen. The areas above the
top (black) bar and below the bottom (white) bar are of no importance to
the test. This test should be left on for at least ten seconds to ensure
that there is no flashing of any color or shifting of the gray bars.

Diagnostic Flowchart Entry Point: Pg. 4A-16.

Figure 3A-2. Gray Bar Screen
CX5200 Field Service Manual 3A-5

Changed by
ECN #0036
6/21/83

ANY VIDEO SCREEN

• Purpose: To test the video generation of the GTIA and ANTIC chips.

• Procedure: Press key 1 followed by START.

• Format: The screen should have a black background with eight vertical
bars. Half of the vertical bars should be narrow and the other half much
wider. A horizontal bar should appear across the top of the screen. From
left to right the shade of color on the horizontal bar should change. On
the right of the bar two V's should be displayed, right side up.

If the Any Video tests fails, swapout A3 and A5, and restart the test.

NOTE: Figure 3-3 is a black and white representation of a colored screen.

Figure 3A-3. Any Video Test Screen

CX5200 Field Service Manual

3A-6

VERIFY OS ROM

• Purpose: To test the OS ROM (A8) for proper functioning.

• Procedure: Press key 8 followed by START.

• Format: If error code 30 appears on the Error Summary (Figure 3-1, pg.
3-8) the OS ROM chip is defective. Replace the defective chip and
restart the test.

No Flowchart Entry Point.

TONE TEST

• Purpose: To check the audio generation section of the POKEY (A7).

• Procedure: Press key 6 followed by START.

• Format: The screen prints at the bottom: Register ^1 to 4) ? Press key
1 followed by START. A series of eight tones sounds on each register.
The first two tones may be inaudible but you can hear the speaker click.
Repeat for registers 2,3,4.

Diagnostic Flowchart Entry Point: Pg. 4A-17.

CX5200 Field Service Manual

3A-7

Changed by
ECN #0036
6/21/83

POKEY (PORT) TEST

• Purpose: To determine any port line failures and confirm the correct
operation of the POKEY chip.

• Procedure: Press key 5 followed by START.

• Format: When you press the keys listed in the first column below, the
numbers and letters in the second column should appear on the screen in
the KB column:

KEY KB Readings
1 1

2 2

3 3

4 4

5 5

6 6

7 7

8 8

9 9

# D

0 0

* E

START A

PAUSE B

RESET C

If the keys do not register cc
TROUBLESHOOTING, page 4A-22.

Press the bottom fire button. The POKEY ADJUST screen should disappear.
If it doesn't proceed to page 3A-9.

Press key 5 followed by START, again bringing the POKEY ADJUST pattern
to the screen. Unplug the controller from Port 1 and insert it into Port 2.
Repeat Step 2.

RAM TEST

NOTE: When using the 1.1 Diagnostic
Cartridge to test the 2-PORT 5200, the
KB Readings may appear to the right of
any of the four ports listed on the screen,
besides the port you are testing. They
must, however, appear to the right of the
port you are testing for the test to be
valid.

:orrectly when pressed, proceed to KEYBOARD

Initialization for RAM Test

• Purpose: To set the 5200 up for a loop test to fully check the RAM (A18-
A25).

• Procedure: Press key 9 followed by START.

Then press key 2 followed by START.

Again press key 2 followed by START.

DISPLAY ERRORS CONTINUOUS TEST appears in the green band on the

RAM Test Procedure

• Purpose: To test the functioning of the 16K RAM chips.

• Procedure: Press key 7 followed by START.

CX5200 Field Service Manual

3A-8

• Format: Each test lasts approximately ten seconds. The screen illustrated below
appears. If an error is listed on the screen, refer to Table 3-1, page 3-9, to
determine which chip has failed.

(Max. 99)

Figure 3A-4. RAM Test Screen

POKEY AD3UST TEST

• Purpose: To test the +CAV circuit output to the controller for proper pot

functioning.

• Procedure: 1. Remove the PCB assembly from its plastic housing.

2. Turn on the unit and press key 5 followed by START.

3. Plug in the loop back board (note that connectors 2 and 3 will
not plug into anything).

4. Adjust R132 to make the value in Port 1, HOR position 112 +1.
The values on 1 VERT, 4 HOR and 4 VER should read between
100 and 124, as illustrated below in Figure 3A-5. (Ports 2 and 3
have no bearing on the test for the 2-port 5200.)

HOR

VERT

110

107

110

115

110

118

110

Figure 3A-5. POKEY ADJUST Test Screen
CX5200 Field Service Manual 3A-9

Changed by
ECN #0036
6/21/83

If the unit cannot be adjusted or if values are out of range, proceed to the Flowchart
Entry Point: Pg. 4A-20.

POKEY SOFTF1RE TEST

• Connect the oscilloscope to pin 16 of A7 (1 v/division;10ms/div.).

• Insert the controller into port 1 .

• Press key 5 followed by START.

• Press the top fire button (softfire).

• A 5v p-p square wave signal should appear. If it does not, proceed to the
SOFTFIRE TROUBLESHOOTING FLOWCHART, page 4A-19.

« Unplug the controller from port 1 and plug it into port 2.

• Repeat the fourth and fifth steps for port 2.

CX5200 Field Service Manual

3 A- 10

SECTION 4

4-PORT 5200 DIAGNOSTIC FLOWCHART

The Diagnostic Flowchart is intended to be easy to use and the primary aid when
troubleshooting the 4-Port 5200. Follow the prompts in the order presented. When
a question is asked, follow the line from the box that best applies to your unit's
condition. When that line terminates with a letter inside a circle, locate the letter
on a different page and continue the diagnosis. The flowchart leaves nothing to
chance; it tells you when to perform a specific test and when to replace
components.

SWAPOUT PROCEDURE

At many places in the diagnostic flowchart, a box tells you to "swapout" a
component, a chip, or a number of chips in a particular order. The "swapout"
instruction means that you should replace the indicated components (one at a time)
with known-good components of the same type. The unit should then be tested
with the new, known-good component(s) in place to see whether the swapout solved
the problem being checked. If the swapout did not fix the problem, leave the new
chip in and swapout the next. Repeat this procedure for the rest of the
components. Once the unit functions properly, reinstall the original IC's one by one
to determine which are actually defective.

REPLACE IN ORDER

The "replace in order" instruction means that you should replace the components
indicated in the order listed until the result called out in the previous block is
obtained.

F - Some lines terminate with an F inside a circle. When this occurs, return to the
beginning of the test sequence on page 3-1.

N - Some lines terminate with an N inside a circle. When this occurs, call your
Atari Repair Hotline.

Inside California
(800) 672-1466

Outside California
(800) 538-1535
(800) 538-1536

CX5200 Field Service Manual 4-1

Changed by
ECN #0036
6/21/83

Black Screen Troubleshooting

X5200 Field Service Manual

4-2

Black Screen Troubleshooting (Cont.)

been changed from U to A.

CX 5200 Field Service Manual

4-3

Black Screen Troubleshooting (Cont.)

CX 5200 Field Service Manual

4-4

Slack Screen Troubleshooting (Cont.)

PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

Black Screen Troubleshooting (Cont.)

A17
Mg
A19
A20
A21
A22
A23
A 24
.A2J

A27

A15

A26

Page 4-7

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

4-6

Black Screen Troubleshooting (Cont.)

PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual ^-7

Black Screen Troubleshooting (Cont.)

***NOTE*»*

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX 5200 Field Service Manual

4-8

Snowy Screen Troubleshooting

Snowy Screen Troubleshooting (cont.)

PCB CA020108, chip designators have
been changed from U to A.

CX 5200 Field Service Manual 4-10

Snowy Screen Troubleshooting (cont.)

♦U29 is chip designation
on PCB #CA0 18087
A26 is chip designation
on PCB #CA020108

♦♦♦NOTE***

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

4-11

Snowy Screen Troubleshooting (cont.)

chips one-by-one and turn on unit. «

If modulation occurs, bad chip has I
been located. If chips are not i

shorted, check for possible CAP or I
trace shorted on board.

♦♦♦NOTE***

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX 5200 Field Service Manual

4-12

Warped Ragged Picture Troubleshooting

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

4-13

Color Troubleshooting

been changed from U to A.

CX 5200 Field Service Manual

4-14

Color Troubleshooting (cont.)

CX 5200 Field Service Manual

4-15

Gray Bars Troubleshooting

Line # Resistor 8 U1 Output U1 Input Pullup 8 U5 Pin 8

LM0 R23

LM1 R24

LM2 R25

3 R18 31

7 R19 22

1 1 R20 23

CX 5200 Field Service Manual

4-16

Pot Control Line Troubleshooting

POT Line Pokey Adjust Port and
Error Code Failure Pin U

Pokey U7

Pin it CAP #1 CAP # 2 Resistor

22 HOR 1

23 VERT 1

24 HOR 2

25 VERT 2

26 HOR 3

27 VERT 3

28 HOR 4

29 VERT 4

1-10

1-11

2-10

2-11

3-10

3- 11

4- 10
4-11

14 C98

15 C97

12 C96

13 C95

10 C94

11 C93

S C92

9 C91

Cl 06 R106
C105 R110
Cl 04 R107
C103 Rill
C102 R108
C101 R 1 1 2
C100 R109
C99 R113

CX 5200 Field Service Manual

4-17

Pot Control Line Troubleshooting(Cont.)

Emitter 13V 13V 3.2V OV 0 0 3.2V OV

Base 12V 13V 4V OV 0 .7V 3.8V OV

Collector 4-6.4 V OV 13V 13V 3.SV OV 12V 13V

CX 5200 Field Service Manual

4-18

Trigger Line Troubleshooting
Bottom Fire Button

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX 5200 Field Service Manual 4-19

Softfire (Top Fire Button) Troubleshooting

PCB CA020108, chip designators have
been changed from U to A.

CX 5200 Field Service Manual

4-20

Keyboard Troubleshooting

Is the failure on Port 1?

■^o

Page ±±2

Manually select Pokey
Adjust Test.

Are there 5v p-p
square waves on Pin 6
of U9 - U12?

No f \

KiJ

Page 4-26

Are there 5v p-p square
waves on Pin 9 & 10 of
U9-U12?

Replace

U7.

— I ' >• rori " — I

( E2 Which port failed? f E4 J

Page 4-23

Page 4-25

Page 4-24 If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual 4-21

Keyboard Troubleshooting (cont.)

PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

4-22

Keyboard Troubleshooting (cont.)

♦**NOTE***

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

4-23

Keyboard Troubleshooting (cont.)

♦♦♦NOTE***

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

4-24

Keyboard Troubleshooting (cont.)

♦♦♦NOTE***

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

4-25

Keyboard Troubleshooting (cont.)

♦♦♦NOTE***

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

4-26

Audio Troubleshooting

If you are servicing a unit containing
PCB CA020108, chip designators have
been changed from U to A.

CX5200 Field Service Manual

4-27

SECTION 4 A

2-PORT 5200 DIAGNOSTIC FLOWCHART

The Diagnostic Flowchart is intended to be easy to use and the primary aid when
troubleshooting the 2-Port 5200. Follow the prompts in the order presented. When
a question is asked, follow the line from the box that best applies to your unit's
condition. When that line terminates with a letter inside a circle, locate the letter
on a different page and continue the diagnosis. The flowchart leaves nothing to
chance; it tells you when to perform a specific test and when to replace
components.

SWAPOUT PROCEDURE

At many places in the diagnostic flowchart, a box tells you to "swapout" a
component, a chip, or a number of chips in a particular order. The "swapout"
instruction means that you should replace the indicated components (one at a time)
with known-good components of the same type. The unit should then be tested with
the new, known-good component(s) in place to see whether the swapout solved the
problem being checked. If the swapout did not fix the problem, leave the new chip
in and swapout the next. Repeat this procedure for the rest of the components.
Once the unit functions properly, reinstall the original IC's one by one to determine
which are actually defective.

REPLACE IN ORDER

The "replace in order" instruction means that you should replace the components
indicated in the order listed until the result called out in the previous block is
obtained.

F - Some lines terminate with an F inside a circle. When this occurs, return to the
beginning of the test sequence on page 3A-1.

N - Some lines terminate with an N inside a circle. When this occurs, call your
Atari Repair Hotline.

Inside California
(800) 672-1466

Outside California
(800) 538-1535
(800) 538-1536

CX5200 Field Service Manual 4A-1

Changed by
ECN #0036
6/21/83

BLACK SCREEN TROUBLESHOOTING

IC #

A10

All

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

A25

A27

Gnd

1,21

CX5200 Field Service Manual

4A-2

BLACK SCREEN TROUBLESHOOTING (Continued)

CX5200 Field Service Manual 4A-3

Changed by
ECN #0036
6/21/83

BLACK SCREEN TROUBLESHOOTING (Continued)

IC #

Gnd

1,21

A10

All

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

A25

A27

Note: Some 5200 2-port boards have pins 1,8,9,10 and 11
of A7 jumpered together on the solder side of the
PCB. Future PCB's will incorporate this jumper.
Do not add these jumpers to the 5200 2-port board.

CX5200 Field Service Manual

4 A-4

BLACK SCREEN TROUBLESHOOTING (Continued)

CX5200 Field Service Manual 4A-5

Changed by
ECN #0036
6/21/83

BLACK SCREEN TROUBLESHOOTING (Continued)

CX5200 Field Service Manual

4A-6

Whenever the flowchart directs you to F, return to the beginning of the testing
procedure in Section 3. Proceed until another error is encountered and you are
again directed to enter the flowchart or until the unit has proven to be fully
operational.

CX5200 Field Service Manual 4A-7

Changed by
ECN #0036
6/21/83

BLACK SCREEN TROUBLESHOOTING (Continued)

CX5200 Field Service Manual

4A-8

BLACK SCREEN TROUBLESHOOTING (Continued)

CX5200 Field Service Manual 4A-9

Changed by
ECN #0036
6/21/83

SNOWY SCREEN (POWER SUPPLY) TROUBLESHOOTING

CX5200 Field Service Manual

4A-10

SNOWY SCREEN (POWER SUPPLY) TROUBLESHOOTING (Continued)

CX5200 Field Service Manual 4A-11

Changed by
ECN # 0036
6/21/83

SNOWY SCREEN (POWER SUPPLY) TROUBLESHOOTING (Continued)

CX5200 Field Service Manual

4A-12

WARPED, RAGGED PICTURE TROUBLESHOOTING

CX5200 Field Service Manual

4A-13

Changed by
ECN #0036
6/21/83

COLOR TROUBLESHOOTING

CX5200 Field Service Manual

4A-14

COLOR TROUBLESHOOTING (Continued)

CX5200 Field Service Manual

4A-15

Changed by
ECN #0036
6/21/83

GRAY BARS TROUBLESHOOTING

Line # Resistor # A1 Output A1 Input Puli up # A5 Pin #

LM1* R24

LM2 R25

LM3 R26

R19 22

R20 23

R21 24

•The 1.1 Diagnostic Cartridge does not test LMO.

CX5200 Field Service Manual

4 A- 16

AUDIO TROUBLESHOOTING

CX5200 Field Service Manual 4A-17

Changed by
ECN #0036
6/21/83

TRIGGER LINE (BOTTOM FIRE BUTTON) TROUBLESHOOTING

Note: Some 5200 2-port boards have pins 1,8,9,10 and 11
of A7 jumpered together on the solder side of the
PCB. Future PCB’s will incorporate this jumper.
Do not add these jumpers to the 5200 2-port board.

CX5200 Field Service Manual

4A-18

SOFTFIRE (TOP FIRE BUTTON) TROUBLESHOOTING

2 A10 Pin 13 11, 12, H, 15

CX5200 Field Service Manual «A-19 Changed by

ECN #0036
6/21/83

POTENTIOMETER CONTROL LINE TROUBLESHOOTING

POT Line Pokey Adjust
Error Code Position

22 HOR 1

23 VERT 1

24 HOR 4

25 VERT 4

Port and Pokey (A7)

Pin # Pin #

1-10 14

1- 11 15

2- 10 12

2-11 13

CAP #1 CAP #2 Resistor

C98 C106 R106

C97 C105 R110

C92 C100 R109

C91 C99 R113

Note; Some 5200 2-port boards have pins 1,8,9,10 and 11
of A7 jumpered together on the solder side of the
PCB. Future PCB’s will incorporate this jumper.
Do not add these jumpers to the 5200 2-port board.

CX5200 Field Service Manual

4A-20

POTENTIOMETER CONTROL LINE TROUBLESHOOTING (Continued)

Condition/ Qll

Transistor A

QI2

A B

QI3 Q14

A B A B

0 3.2V OV

• 7V 3.8V OV

OV 12V 13V

A: Pokey Adjust Selected

B: Other 1.1 tests (excluding Port Test)

Emitter

Base

Collector

13V I3V 3.2V

12V 13V 4V

4-6.4V OV 13V

OV 0

13V 3.8V

CX5200 Field Service Manual 4A-21

Changed by
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KEYBOARD TROUBLESHOOTING

CX5200 Field Service Manual

4A-22

KEYBOARD TROUBLESHOOTING (Continued)

CX5200 Field Service Manual

4A-23

Changed by
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KEYBOARD TROUBLESHOOTING (Continued)

CX5200 Field Service Manual

4A-24

SECTION 5

4-PORT 5200 SYMPTOM CHECKLIST

The Symptom Checklist is designed to assist the experienced technician arrive at a
rapid diagnosis for model 5200 problems. The checklist is not intended to replace the
Diagnostic Flowcharts as the primary troubleshooting guide, but rather, to supplement
the flowchart. To save you time, Diagnostic Flowchart entry points are indicated on
the checklist where applicable.

SOLID COLORED SCREEN

FLOWCHART

SYMPTOM POSSIBLE CAUSES ENTRY POINT

Solid Colored Screen U7,U2,U3,U5,Y1,Q1,Q2,VR1 Pg. 4-2

Vertically Lined Screen 31,U2,U3,U5,U7 or open or Pg. 4-2

shorted data or address line

Snowy Screen

Warped Picture
(Sync Loss)

VIDEO FAILURES

VR2,U29(A26)* R.F. Module Pg. 4-9

RF Module, U1,U5, U3 Pg. 4-13

No Color
Weak Color

COLOR FAILURES

U5,Q3,C9,C11,Y1 Pg. 4-14

Q3,C11 ,C9,R29,R32 Pg. 4-14

AUDIO FAILURES

Audio Failures U7,Q4,C14,C13,L1

Only a Few Tones U7

Fail

Pg. 4-27
Pg. 4-27

*U29 is chip designation on PCB #CA018087; A26 is chip designation on PCB
#CA020108. If you are servicing a unit containing PCB CA020108, chip designators
have been changed from U to A.

CX5200 Field Service Manual 5-1

Changed by
ECN #0036
6/21/83

4-PORT 5200 SYMPTOM CHECKLIST (Cont.)

CONTROLLER FAILURES

SYMPTOM

Joystick does not work

Keypad does not work
Fire Button does not fire

FLOWCHART

POSSIBLE CAUSES ENTRY POINT

PORT,U5,U7,C91-C106, Pg. 6-3

R106-R1 13

PORT.U9-U12 Pg. 6-4

PORT,U5,Rl 14-R117,C107-C110 Pg. 4-20 or 4-21

***NOTE***

If you are servicing a unit
containing PCB CA020108,
chip designators have been
changed from U to A.

CX5200 Field Service Manual

5-2

SECTION 5A

2-PORT 5200 SYMPTOM CHECKLIST

The Symptom Checklist is designed to assist the experienced technician to arrive at a
rapid diagnosis for 2-Port 5200 problems. The checklist is not intended to replace the
Diagnostic Flowchart as the primary troubleshooting guide but to supplement the
flowchart. To save you time, Diagnostic Flowchart entry points are indicated on the
checklist where applicable.

SYMPTOM

POSSIBLE CAUSES

FLOWCHART
ENTRY POINT

SOLID COLORED SCREEN

Solid Colored Screen

A7,A2,A3,A5,A7,Y1,Q1,

Q2, VR1

Pg. 4A-2

Vertically Lined Screen

J1,A2,A3,A5,A7 or open or
shorted data or address line

Pg. 4A-2

VIDEO FAILURES

Snowy Screen

VR2,A26, RF Module,

Jack, Cable

Pg. 4A-10

Warped Picture
(Sync Loss)

RF Module, A1,A5, A3

Pg. 4A-13

COLOR FAILURES

No Color

A5,Q3,C9,C11,Y1

Pg. 4 A- 14

Weak Color

Q3,C11 ,C9,R29,R32

Pg. 4A-14

AUDIO FAILURES

Audio Failures

A7,Q4,C14,C13,L1

Pg. 4A-17

Only a Few Tones

Pg. 4A-17

Fail

CX5200 Field Service Manual 5A-1

Changed by
ECN #0036
6/21/83

2-PORT MODEL 5200 SYMPTOM CHECKLIST (Cont.)

CONTROLLER FAILURES

SYMPTOM

POSSIBLE CAUSES

FLOWCHART
ENTRY POINT

Joystick does not work

PORT, A5,A7,C91-C 106,
R106-R113

Pg. 6-3

Keypad does not work

PORT A7,A9-A1 1

Pg. 6-6

Bottom Fire Button does not
fire

PORT,A5,Rl 14-R1 1 7,
C107-C110

Pg. 4A-18

Top (Softfire) Fire

Button does not fire

PORT, A7,A8,A2
multiplexer.

Pg. 4A-19

CX5200 Field Service Manual

5A-2

SECTION 6

GAME CONTROLLER

The following pages contain descriptions, schematics and test procedures for the
Model 5200 Game Controller.

Overview

The Model 5200 game controller consists of:

• The Joystick

• The Keypad

• The Fire Buttons

• The Select Buttons

Refer to Figure 6-1 for the following discussion of the game controller parts.

Joystick

The Joystick assembly contains two pots set in the bottom controller case. Two slides
(actuator plates) in the top controller case move the pot arms into position when the
player moves the joystick. NOTE: For proper operation, the pot arms must be aligned
correctly. See Page 6-8 for Pot Arm Alignment Procedures.

The key pad, fire buttons and select buttons operate via a flex circuit.

Key Pad

The key pad is a series of 12 buttons which are used to enhance game play.

Fire Buttons

The game controller has two top fire buttons (one left, one right) and two bottom fire
buttons (one left, one right). The bottom fire button (either side) is the one most
frequently used.

Select Buttons

The Select Buttons and their functions are:

Start

Pause

Reset

starts the game being played,
temporarily stops the game during play.

permanently stops game play until the Start button is pressed.

Check the key pad functions using Page 6-3, CONTROLLER TESTING USING THE
5200 CONSOLE.

Check the top fire buttons by following the procedure for CONTROLLER TESTING
WITHOUT A 5200 CONSOLE on page 6-5.

Check the bottom fire buttons by pressing them separately while in the POKEY
ADJUST test. If they are working properly, the screen will display the selection menu.

If the fire buttons are found defective, use Page 6-6 , Failures, to troubleshoot.

CX5200 Field Service Manual 6-2

CONTROLLER TESTING USING THE 5200 CONSOLE

Equipment Needed:

Known-good Model 5200 console (properly adjusted)
Known-good Model 5200 controller
Color T.V. set (properly adjusted)

Diagnostic Cartridge (version 1.1)

Ohm meter

Procedure: (Using 1.1 Diagnostic Cartridge)

1) Set up the 5200 console with a TV, the 1.1 diagnostic cartridge inserted,
and a known-good controller in port 1.

2) Press key 5 and then press START to bring up the Pokey Adjust Screen.

3) Remove the known-good controller and insert the controller to be
tested into port 1.

4) Move the controller joystick to position 1, as illustrated in Figure 6-2
below. The readings on the screen should be less than 25 for Port 1
(Port 1 - Horizontal and Vertical).

□ □□
□□□
□ □□
□ □□

Figure 6-2. Joystick Positions 1 & 2

CX5200 Field Service Manual

6-3

Changed by
ECN #0036
6/21/83

5) Move the controller joystick to position 2, as illustrated in Figure 6-2.
The readings on the screen should be greater than 190 for port 1.

6) Slowly move the joystick back and forth between positions 1 and 2 and
verify that the readings increase and decrease evenly on the screen.
There should be no extreme or sudden changes.

7) Press the keys in the order given on the chart below. As you press each
key, watch the screen to verify that the correct letter is displayed in
the KB-1 column (see chart below).

KEY

KB-1 Readings

START C

PAUSE D

SELECT E

1 1

2 2

3 3

4 4

5 5

6 6

7 7

8 8

9 9

* A

0 0

# B

If this test fails, go to Page 6-6, FAILURES.

8) Press one of the bottom fire buttons and the POKEY Adjust Screen
should be replaced by the menu.

9) Select the POKEY Adjust Test again (Press 5 and then START).

10) Press the other bottom fire button and the POKEY Adjust Screen should
be replaced by the menu.

If the fire buttons are defective, use the FAILURES section on page 6-6
to troubleshoot them.

To check the top fire buttons, go to Step 3 of the CONTROLLER TEST
WITHOUT A 5200 CONSOLE, Page 6-5.

11) This concludes the controller test.

CX5200 Field Service Manual

6-4

CONTROLLER TESTING WITHOUT A 5200 CONSOLE

Special Equipment Needed;

• An Ohm meter

Procedure;

Use F igure 6-2 on Page 6-3 as reference for Steps 1 and 2.

1 ) Move the controller joystick to position 1. Use an Ohm meter to determine the
pot readings through the cable (cable connector Pins 1 1 & 9 and 10 3c 9). The
pot reading should be no greater than 50K ohms.

2) Move the controller joystick to position 2. The pot reading through the cable
should be at least 430K ohms greater than in position 1 (cable connector pins
10 3c 9 and 11 3c 9).

3) To check the switches you must connect the leads of the ohmmeter to the pin
numbers given below. Without the button depressed it should show infinite
resistance (open circuit). With the button depressed it should show less than
50K ohms resistance. Be sure to press the two fire buttons (left and right
sides) separately to make sure they both work (see Figure 6-3 on page 6-6 for
pin locations).

Controller Pin Numbers

Top Fire Button

Bottom Fire Button

Start

Pause

Reset

4 3c 7
4 3c 6

4 3c 5
7 3c 3
7 3c 2

7 3c 1
6 3c 3
6 3c 2
6 3c 1

5 3c 3
5 3c 2
5 3c 1

8 3c 3
8 3c 2
8 3c 1

15 3c 14

15 3c 13

6
7

Failures can be repaired using pages 6-6 through 6-10.

CX5200 Field Service Manual

6-5

Changed by
ECN #0036
6/21/83

FAILURES

If one key pad key fails, check the 12 key switch set for contamination and clean if
necessary. If there is no contamination, replace the Flex Circuit Pad.

If more than one key pad key fails or if the joystick or the fire buttons are not
functioning properly:

1) Determine if the controller cable is defective (See Table 6-1).

2) If the controller cable is not defective:

a) Replace the flex circuit pad; or,

b) Align or replace the pots. (See Page 6-8).

NOTE: Pots must be aligned if replaced.

To use Table 6-1 to check the controller cables:

For each failed key, check the continuity from the cable connection pin (column 1) to
the flex circuit pad pin (column 2). Note that each key is listed in two places under
Failed Key .

Cable Connector Pins are numbered as shown in Figure 6-3.

8 7 6 5 4 3 2 1

oooooooo/
ooooooo /

15 14 13 12 II 10 9

F igure 6-3. Cable Connector Pins

Flex circuit pad pins are numbered 11 (left) to 1 (right) as viewed with controller in
normal position for game play.

CX5200 Field Service Manual

6-6

Table 6-1. Game Controller Continuity Check

Failed Key

1(S1), 4(S4), 7(S7), *(S10)

2(S2), 5(S5), 8(S8), 0 (SI 1)

3(S3), 6(S6), 9(S9), # (SI 2)

1(S1), 2(S2), 3(S3), Start (SI 3)

4(S4), 5(S5), 6(S6), Pause (S14)

7(S 7), 8(S8), 9(S9), Reset (SI 5)

* (S10), 0(S11), # (SI 2)

Start (SI 3), Pause (S14), Reset (SI 5)
Softfire (Top Fire Button)(S16, S17)
not presently used in games

Trigger (Line) (Bottom Fire Button)
(S18.S19)

Horizontal control on joystick
does not work (Pot 2)

Vertical control on joystick
does not work (Pot 1)

Column 1 Column 2

Cable Connector

Flex Circuit Pad

1) Pin 3

2) Pin 8

1) Pin 2

2) Pin 7

1) Pin 1

2) Pin 6

1) Pin 7

2) Pin 9

1) Pin 6

2) Pin 5

1) Pin 5

2) Pin 4

1) Pin 8

2) Pin 3

1) Pin 4

2) Pin 10

1) Pin 15

1) Pin 14

2) Pin 1 and

2) Pin 1 1

1) Pin 13

1) Pin 14

2) Pin 2 and

2) Pin 11

1) 10 & 9

1) 11 & 9

CX5200 Field Service Manual 6-7

Changed by
ECN #0036
6/21 /83

POT ARM ALIGNMENT PROCEDURE

If you have not already done so, determine if the controller cable is defective (see
Table 6-1). If the cable is not defective, continue with the following steps.

Use Figure 6-4 as reference for steps 1 through 3.

1) Disassemble the controller and remove arm from wiper shaft on pot.

2) Adjust wiper shaft on pot so that reading between terminals if 2 and #3 is
5K -20 K Ohms.

3) Position arm on wiper shaft as shown below; position A.

Figure 6-4. Pot and Arm Assembly

4) Reassemble the controller (refer to Page 6-10, CONTROLLER
DISASSEMBLY/ASSEMBLY.

5) Move the controller joystick to position 1 (refer to Figure 6-2). Use an
Ohm meter to determine the pot readings through the cable (cable
connector Pins 11 3c 9 and 10 3c 9). The pot reading should be no greater
than 50K Ohms.

6) Move the controller joystick to position 2 (refer to Figure 6-2). The pot
reading through the cable (connector Pins 10 3c 9 and 11 3c 9) should be at
least 430K Ohms greater than in position 1.

CX5200 Field Service Manual

If this test fails:

a) Replace the pots if they have not already been replaced.

b) Replace the actuator plates if the pots have already been replaced.

NOTE: The actuator plates must be replaced as a complete unit which
includes the two actuator plates and the slide block (see Figure 6-5).

UloPJ

□ □□
□ □□
□ □□

'5Ude Block
■Actuator Plates

Figure 6-5. Controller Top (Underside)

CX5200 Field Service Manual

6-9

Changed by
ECN #0036
6/21/83

CONTROLLER DISASSEMBLY/ ASSEMBLY

Disassembly

1. To remove the select switches:

• Slide a flathead screw driver under the select switch bezel between
switches and pry out the bezel (See Figure 6-6).

• Remove the switches.

Figure 6-6. Select Switch Bezel Removal

2. Remove the three screws from the bottom controller case.

3. Separate the top controller case from the bottom controller case. The flex
circuit and key pad can now be removed.

4. Remove the two fire buttons on each side by pulling them up.

At this point you can check or replace the Flex Circuit Pad and pots, if necessary.

5. Use the 5200 Controller Knob Puller Tool (FC100214) to remove the joystick
handle.

Push the knob shaft into one of the corners of the top housing opening. Push
down the boot with the tool to expose the shaft. Push the tool toward the
shaft until the shaft is inside the notch of the tool's head (See Figure 1). Now,
gently lever the tool, and the knob will pop off.

NOTE: By using care, you will not damage the boot during this process.

Be sure to note position of actuator plates and slide block for replacement.

CX5200 Field Service Manual

6-10

Assembly

Figure 6-7. Controller Knob Removal

1. To replace joystick:

• Place boot in position on outside of top controller case.

• Position actuator plates and slide block in underside of top controller
case.

• From underside, place pivot shaft through holes in slide block and boot.

• From top, push joystick onto pivot shaft.

2. Replace the fire buttons and place the key pad on the support plate (refer to
Figure 6-1).

3. Position the pot arms as shown in Figure 6-8.

Figure 6-8. Pot Arm Positions for Assembly

CX5200 Field Service Manual

6-11

Changed by
ECN #0036
6/21/83

it. Place the Select Switches' flex strip through the opening at the left of its well.

5 . Position the top controller case on the bottom controller case. Be sure that:

• The actuator plates are correctly positioned in the top controller case
(refer to Figure 6-5).

• The pot arms are set into the holes in the actuator plates (refer to
Figure 6-5).

• The joystick pivot shaft sets in the well located between the two pots.

6. Replace and tighten the three screws which hold the top and bottom controller
case together.

7. Replace the select switches by placing them on top of the function key pad
and pressing the bezel into position on top of them.

CX5200 Field Service Manual

6-12

Figure 6-9. CX52 Game Controller Schematic

CX5200 Field Service Manual

6-13

Changed by
ECN #0036
6/21/83

SECTION 7

CX53 TRAKBALL

Section 7 provides the information necessary to troubleshoot and repair the CX53
Trakball which is used with the model 5200. The following pages contain descriptions,
test procedures, diagnostic flowcharts, a symptom checklist, disassembly/assembly
instructions and a parts list for the CX53 Trakball. The schematic and silkscreen are
included separately.

This section is organized as follows:

Page

Information

7-1 through 7-4

An overview and general
description of the CX53
Trakball.

7-5 and 7-6

Theory of Operation and Block
Diagram

7-7 through 7-26

Test Procedures, Diagnostic
Flowcharts and Symptom
Checklist

7-27 through 7-30

D isassem bly/ Assembly
Procedures

7-31 and 7-32

The CX53 Parts List

The Trakball Schematic and Silkscreen accompany this manual.

OVERVIEW

The CX53 Trakball is an analog controller which can be substituted for the joystick on
several game cartridges.

It is composed of an outer case which houses the keypad PC board, the main PC board,
the roller shaft assemblies, an idler shaft assembly and a cue ball. Use Figure 7-1 and
7-2 as reference for the following discussion of Trakball parts.

CX5200 Field Service Manual

7-1

Keypad PC Board

Figure 7-1. Top Cover Assembly

CX5200 Field Service Manual

7-2

Cue Bali

CX5200 Field Service Manual

7-3

Outer Case

The outer case consists of a top and a bottom plastic cover which are held together by

5 phillips head screws.

At the base of the bottom cover is a cable wrap post for cord storage.

Top Cover

The top cover provides the following (visible from the outside):

• an opening in the center for the cue ball.

• the START, PAUSE and RESET buttons. Their functions are:

START - is used to start the game being played.

PAUSE - temporarily stops the game during play.

RESET - permanently stops game play until the Start button is

pressed.

• Two conductive rubber keypads; one on each side of the console. The two
keypads are identical - one is for left handed players; the other is for right
handed players. The use is the same as the keypad on the regular Model
5200 controller.

• Two identical sets of fire buttons (for use by right handed or left handed
players). The two buttons closest to the cue ball are the same as the
bottom fire buttons on the regular Model 5200 controller. The two buttons
closest to the outside of the console are the same as the top fire buttons on
the regular Model 5200 controller.

The underside of the top cover houses the keypad PC board. All of the
buttons make contact against this board. The fire buttons are dome type.
The remaining buttons (the START, PAUSE, RESET and the keypad
buttons) are all the conductive rubber type.

Bottom Cover

The bottom cover provides:

• an opening at the rear for the game cable

• the main PC Board

• two roller shaft assemblies each consisting of:

- a roller shaft

2 bearings

a slotted encoding wheel

• an idler shaft assembly

• a cue ball j

CX5200 Field Service Manual

THEORY OF OPERATION

For the following discussion, reference the lower PC board assembly schematic. Since
both X and Y circuit operation is identical, refer to the X circuit for this description.

The CX53 Trakball is a 2-channel D to A converter which translates optically coupled
clocks into analog currents. The current sources or sinks into the two paddle line
inputs used for X-Y control in the 5200. Figure 7-3 is a function block diagram to
illustrate the following information.

When the cue ball is spun, the two roller shafts rotate. Each shaft has a slotted
encoding wheel at one end which interrupts the two light sources in the optocoupler
for that channel. This produces a pair of alternating voltage wave forms from the
photo-transistors in the optocoupler (U2).

Comparator A1 straightens the signals from U1 into 5V square waves and feeds them
to A2 and A5. These two clock waveforms are approximately 90° out of phase. This
allows correct direction sensing, depending upon which clock leads the other. A2
senses which leading edge of the two clocks is coming first, thus determining
direction. A5 combines the two clocks into one with doubled frequency, thus
increasing resolution. This clock is in turn fed into A3 which sets the clock's pulse
width at a constant duration while still allowing the frequency to vary with speed.

The Q and Q outputs from A2 are used to gate the fixed-width pulses from A3 with the
directional clockgates (A4). This produces alternating outputs depending upon
direction (Left or Right). The current integrator networks on the outputs of A4A &C
and A5B<3cC then link these gated clocks to the analog input of the 5200 main console.

TP9 & TP10 each should have a ramp waveform approximately 3 volts in amplitude.
This ramp waveform is generated in the main circuitry of the 5200 and is controlled by
increases or decreases in current caused by the Trakball circuit. When the ball is
stationary, the ramp will remain at approximately 3V. When the ball is spun in the
"right" or "down" direction an inverted clock siphons current off the corresponding
ramp with a net reduction in the slope of the ramp (-600mV max. @ C7 and C8). When
the ball is spun in the "left" or "up" direction a positive clock causes positive current
integration, with a net increase in the slope of the ramp (+900mV max. (9C7 and C8).

The clear line (used for calibration) is held HIGH for normal operation. During
initialization the console pulls it LOW. This prevents any ball-generated clocks
coming from A3, and allows the static output level to be read and used as a reference
reading in determining velocity change.

CX5200 Field Service Manual

7-5

Figure 7-3. Trakball Block Diagram.

TEST PROCEDURES

Equipment Needed:

• a known good Model 5200 console

• a T.V. set, properly adjusted

• a Missile Command^M Cartridge

• a 1.1 Diagnostic Cartridge

• a Digital Voltmeter

Mechanical Check:

Verify that the ball will spin freely and smoothly in all directions. There should be no
excessive noise or vibration. If the ball will not spin freely or is excessively noisy,
refer to Flowchart A, page 7-11 of this section.

Keyboard Test:

1) Plug the Trakball into player port //I of the Model 5200 console.

2) Insert a 1.1 Diagnostic Cartridge into the Model 5200.

3) Turn the Model 5200 on and select the POKEY Adjust TEST (Test #5).

If the POKEY Adjust Test cannot be selected using the trakball (due to
keyboard failure), use a Model 5200 controller to select the test. When the
test has been selected, unplug the Model 5200 controller and plug in the
Trakball to continue testing.

4) Test all functions of the START, PAUSE, and RESET buttons and the
Keypads:

Table 1-1 shows the correct display for each of the buttons.

Table 7-1

Keyboard Test Display

Button/Keys Display

1 1

2 2

3 3

4 4

5 5

6 6

7 7

8 8

9 9

0 0

* A

// B

START C

PAUSE D

RESET E

CX5200 Field Service Manual 7-7

If the START, PAUSE or RESET buttons fail, go to Flowchart B, page 7-12 of this
section.

If the Keypad(s) fail(s), go to Flowchart BX, page 7-13 of this section.

Trakbail and Firebutton Test:

1) Insert the Missile Command cartridge into the Model 5200.

2) Turn the Model 5200 on and press START.

3) By spinning the ball at a moderately slow speed, verify that it will cause
the cursor (crosshairs) to move in any direction. Be sure that it moves to
all extremes of the screen (up, down, left, right, diagonal, and circular
motions).

NOTE: When moving in diagonal or circular motions, the cursor will move
in slight "steps". This is due to the type of programming used and should
not be considered a trakbail failure (see

Diagonal Motion

Figure 7-4. Diagonal or Circular Motion.

NOTE: If more time is required than the attack wave allows, simply press
START as needed.

For Cursor left/right failures, go to Flowchart C, page 7-14 of this section.

For Cursor up/down failures, go to Flowchart D, page 7-19 of this section.

4) Move the cursor to the right border of the screen. Spin the ball as fast as
possible by hand in the right direction. This tests for "directional
dropouts". While spinning the ball as fast as possible to the right, the
cursor should remain on the right border. There should be no movement to
the left.

Repeat this test for the left, up, and down directions. For Left/Right
failures, go to Flowchart E, page 7-23* For up/down failures, go to
Flowchart F, page 7-24.

CX5200 Field Service Manual

7-8

5) Verify that a missile fires each time either of the fire buttons (Trigger)
closest to the cue ball is pressed. Be sure to test both left and right fire
buttons.

If a failure occurs, go to Flowchart M, page 7-25 of this section.

6) Disconnect the trakball from the Model 5200 console. Insert one probe of a
Digital Voltmeter into pin 14 of the trakball player port plug. Insert the
other probe into pin 15. When either of the outside (Softfire) firebuttons is
pressed, the Digital Voltmeter should read less than 200 ohms. Perform
this test for both of the outside firebuttons. If a failure occurs, go to
Flowchart M, page 7-25 of this section.

CX5200 Field Service Manual

7-9

DIAGNOSTIC FLOWCHARTS

The Diagnostic Flowchart is intended to be easy to use and the primary aid when
troubleshooting the Model 5200. Follow the prompts in the order presented. When a
question is asked, follow the line from the box that best applies to your unit's
condition. When that line terminates with a letter inside a circle, locate the letter on
a different page and continue the diagnosis. The flowchart leaves nothing to chance,
it tells you when to perform a specific test and when to replace components.

SWAP OUT PROCEDURE

At many places in the diagnostic flowchart, a box tells you to "swap out" a component,
a chip, or a number of chips in a particular order. The "swap-out" instruction means
that you should replace the indicated components (one at a time) with a known-good
component of the same type. The unit should then be tested with the new, known-good
component in place to see whether the swap out solved the problem being checked. If
the swap out did not fix the problem, leave in the new chip and swapout the next.
Repeat this procedure for the rest of the swapout. Once the unit properly functions,
reinstall the removed IC's to determine which are actually defective.

NOTE: If sockets or components are replaced, trim leads as close to PC Board as
possible (See SUkscreen - shaded areas indicate which leads to trim. Only trim
leads in shaded areas as close to board as possible).

REPLACE IN ORDER

The "replace in order" instruction means that you should replace the components
indicated in the order listed until the result called out in the previous block is
obtained.

X - Some lines terminates with an X inside a circle. When this occurs, return to the
beginning of the test sequence (Mechanical Check page 7-7).

If you have questions or require further information, call your Atari Techline
Specialist.

Inside California
(800) 672-1466

Outside California
(800) 538-1535

CX5200 Field Service Manual

7-10

MECHANICAL OPERATION

Return to beginning of Test Sequence

CX5200 Field Service Manual

7-11

KEYBOARD TROUBLESHOOTING (START, PAUSE, RESET BUTTONS)

Game Cable Continuity Check

Using a Digital Voltmeter, check the continuity from 31 (column 1) on the upper PC Board to the
game cable port connector (column 2).

(1)

Key 31 Pin //

START, PAUSE, RESET 11

START, 1,2,3 4

PAUSE, 4,5,6 2

RESET, 7,8,9 1

1,4,7,* 5

2, 5, 8,0 7

3,6,9,// 3

( 2 )

Game Cable Port
Connector Pin //

CX5200 Field Service Manual

7-12

KEYBOARD TROUBLESHOOTING (KEYPADS)

Game Cable Continuity Check

Using a Digital Voltmeter, check the continuity from 31 (column 1) on the upper PC Board to the
game cable port connector (column 2).

Key

(1)

31 Pin #

( 2 )

Game Cable Port
Connector Pin #

START, PAUSE, RESET 1 1

START, 1,2,3 4

PAUSE, 4,5,6 2

RESET, 7,8,9 1

1,6,7,* 5

2, 5, 8,0 7

3,6,9,# 3

CX5200 Field Service Manual

7-13

CURSOR LEFT /RIGHT TROUBLESHOOTING

Re turn to beginning of Test Sequence

CX5200 Field Service Manual

7-14

CURSOR LEFT/RIGHT TROUBLESHOOTING (Cont.)

Return to beginning
of Test Sequence

CX5200 Field Service Manual

7-15

CURSOR LEFT/RIGHT TROUBLESHOOTING (Cont.)

Return to beginning of Test Sequence

CX5200 Field Service Manual

7-16

CURSOR LEFT/RIGHT TROUBLESHOOTING (Cont.)

Return to beginning of Test Sequence

CX5200 Field Service Manual

7-17

CURSOR LEFT/RIGHT TROUBLESHOOTING (Cont.)

Return to beginning of Test Sequence

CX5200 Field Service Manual

7-18

CURSOR UP/DOWN TROUBLESHOOTING

Return to beginning of Test Sequence

CX5200 Field Service Manual

7-20

CURSOR UP/DOWN TROUBLESHOOTING (Cont.)

Return to beginning
of Test Sequence

CX5200 Field Service Manual

7-20

CURSOR UP/DOWN TROUBLESHOOTING (Cont.)

Return to beginning of Test Sequence

CX5200 Field Service Manual

7-21

CURSOR UP/DOWN TROUBLESHOOTING (Cont.)

Return to beginning of Test Sequence

CX5200 Field Service Manual

7-22

LEFT /RIGHT DIRECTIONAL DROPOUTS TROUBLESHOOTING

NOTE: Make sure the main PC Board is seated properly in the bottom cover. The comers where
UI and U2 are mounted should be flush with the bottom cover.

CX5200 Field Service Manual

7-23

UP /DOWN DIRECTIONAL DROPOUTS TROUBLESHOOTING

Return to beginning of Test Sequence

CX5200 Field Service Manual

7-24

FIREBUTTON TROUBLESHOOTING

Return to beginning of Test Sequence

CX5200 Field Service Manual

7-25

SYMPTOM CHECKLIST

SYMPTOM

POSSIBLE CAUSES

FLOWCHART
ENTRY POINT

Noisy operation or ball
won't spin freely

Dirty roller and idler
shafts and ball, worn
bearings, warped encoding
wheels

A, Page 7-11

Keyboard failure

Dirty keyboard PC board,
dirty 1 2-key switch set,
or defective game cable

B, Page 7-12

Fire button failure

Damaged dome switches on
keyboard PC Board, defective
game cable

See Chart,
Flowchart B,
Page 7-12

Cursor won't move at all

Ql, A3, defective game
cable

No Flowchart
Entry Point

Cursor moves erratically left
and right or up and down

No Flowchart
Entry Point

Cursor won't move left
or right

Ul, A1-A5, C7

C, Page 7-14

Cursor won't move up
or down

U2, A1-A5, C8

D, Page 7-19

Directional dropouts
(left or right)

Ul, PC board not seated
properly

E, Page 7-23

Directional dropouts
(up or down)

U2, PC board not seated
properly

E, Page 7-23

Blank screen when
trakball is plugged in

C1,C2 or any of the

IC's A1-A5 shorted to ground

No Flowchart
Entry Point

CX5200 Field Service Manual

7-26

DISASSEMBLY/ ASSEMBLY

Be sure that unit is unplugged from the Model 5200 Console before disassembling to
any level.

Refer to Figures 7-1 and 7-2, for the following Disassembly/Assembly.

• Turn the unit upside down and support it so that cue ball doesn't rub against
the work bench (See Figure 7-5).

Figure 7-5. Cue Ball Support

• Remove the 5 phillips head screws from the bottom cover.

• Turn the unit right side up. Lift off the top cover and place it upside down.

• To remove the Keypad PC board (See Figure 7-6):

Unplug the 1 1-pin ribbon cable from the PC board. Be sure to note
polarity when unplugging.

Carefully pull out on the four retaining clips (top cover) while lifting
up on the board.

CX5200 Field Service Manual

7-27

Retaining Clip

Figure 7-6. Top Cover (Underside)

To replace the Keypad PC Board:

• Position the board as shown in Figure 7-6. Be sure that PC board is under
the notches at the back of the top cover.

• Carefully pull the retaining clips (top cover) far enough away from the PC
board to allow the board to slip down and lock into position under the clip.

• Plug in the 1 1-pin ribbon cable.

To remove the main PC Board: (See Figure 7-7)

• Unplug the 5-pin cable plug (32). Be sure to note polarity when unplugging.

• Lift and remove the cue ball and the two roller shafts.

• Carefully pull out on retaining clip A and lift the PC board, then pull out
on retaining clip B and lift the PC board.

• Remove the PC board.

CX5200 Field Service Manual

7-28

Retaining Clip A

Figure 7-7. Main PC Board
To replace the main PC Board:

• Position the board as shown in Figure 7-7. Be sure that the holes in the
board are aligned with the three holding tabs in the bottom cover.

• Carefully pull out on retaining clip A, slip the board down and lock it into
place under the clip.

• Carefully pull out on retaining clip B, slip the board down and lock it into
place under the clip.

• Plug in the 5-pin cable plug (32) on the PC board.

To reassemble the console:

• Replace the main PC board in the bottom cover.

• Replace the cue ball and two roller shafts in the bottom cover. Be sure
that the roller shaft bearings and the encoding wheel are seated properly.
The bearings fit into the rounded wells at each end of the roller shaft
assembly. The encoding wheel fits into the optocoupler slot.

• Replace the keypad PC board in the top cover.

• Be sure that all cables are plugged in correctly.

• Be sure that all springs and keypads are correctly mounted in the top case.

CX5200 Field Service Manual

7-29

• Place the top cover over the bottom cover.

• Turn the unit upside down. Support the unit on books to keep the cue ball
from rubbing against the work bench.

• Replace and tighten the five phillips head screws in the bottom cover.

CX5200 Field Service Manual

7-30

PARTS LIST

LOCATOR

DESCRIPTION

PART NUMBER

TRAKBALL ASSY

CA020194

Top Housing Assy

CA020197

Bottom Housing Assy

CA020198

Lower PCB Assy

CA020140

Roller Shaft Assy

CA020583

Cable Assy

CA020338

Top Housing Assy

CA020197

Top Housing

C020195

Name Plate

C020193

1 2-Key Switch Set

C018126

Fire Button

C020192

Auxiliary Function Keys

C018128

Upper PCB Assy

CA020287

Spring

C012951

Bottom Housing Assy

CA020I98

Bottom Housing

C021096

Roller Shaft Assy

CA020583

Idler Shaft Assy

CA020582

Ball, 2 1/4" Diameter

C020191

Feet, rubber

88-1006

Lower PCB Sub-Assy

CA020141

Shaft, Roller

C020572

Encoding Wheel

C020571

Bearing

C020190

Cap, Electrolytic Radial lOuf 16V

C014392

Cap, Ceramic Axial .luf 50V

C014180-19

C3,4

Cap, Ceramic Axial 470pf 50V

C014180-07

C5,6,7,8

Cap, Mylar Radial: .luf, 100 V

C017885

Cap, Ceramic Axial: .Oluf 50V

C014180-18

CIO

Cap, Ceramic Axial: .22uf 50V

C014181-05

Rl-4

Resistor: 3K 1/4W

14-5302

R5,6

Resistor: 12K, 1/4W

14-5123

R7, 26-29

Resistor: 10K 1/4W

14-5471

Resistor: IK 1/4 W

14-5102

R9-12

Resistor: 2.2K 1/4W

14-5222

R13-16

Resistor: 1.3K 1/4W

14-5132

R17,19

Resistor: 43K 1/4W

14-5433

R 18-20

Resistor: 30K 1/4W

14-5303

R21,22

Resistor: 180K 1/4W

14-5184

R23,24

Resistor: 240 Ohm 1/4W

14-5241

CX5200 Field Service Manual

7-31

CX53 TRAKBALL

LOCATOR

DESCRIPTION

PART NUMBER

R25

Resistor: 4.7K 1/4W

14-5472

R30

Resistor: 100K 1/4W

14-5104

R31

Resistor 8.2K 1/4W

14-5822

R32-35

Resistor 430K 1 /4W

14-5434

XA1, 2,4,5

Socket I.C. 14 Pin

CO 14386-02

XA3

Socket I.C. 16 Pin

C014386-03

Connector, Molex 5 Pin

C020463

Ul,2

Optocoupler

C020290

Transistor, 2N3904

34-2N3904

PCB

C020142

I.C. LM339

CO 159 50

I.C. 4013

C014334

I.C. 4538

C020478

I.C. 4011

C014333

I.C. 4030

C020477

Cable Assy, 15-wire, 4-feet

CA020338

CX5200 Field Service Manual

7-32

SECTION 8

ATARI CX5200 PARTS LIST
MAJOR ASSEMBLIES

LOCATION DESCRIPTION

ATARI VCS CX5200
(ORIGINAL 4-PORT) (Pkgd.)

ATARI VCS CX520Q
(UNIVERSAL 4-PORT) (Pkgd.)

PC Board Assy (Main)

(ORIGINAL 4-PORT)

PC Board Assy (Main)

(UNIVERSAL 4-PORT)

Heatsink Assy
Heatsink Assy (Universal)

RF Modulator "B" Assy
Cable Assy
Top Housing Assy
(Original & Universal 4-Port)

Base Assy

(Original Sc Universal 4-Port)

ATARI VCS CX5200 (Pkgd.)

(2-PORT)

PC Board Assy (Main) (2-Port)

Heatsink Assy
RF Modulator "B" Assy
Cable Assy
PC Board Sub-Assy
Top Housing Assy (2-Port)

Base Assy (2-Port)

ATARI CX522 SWITCH BOX ASSY (Pkgd.)

(ORIGINAL AND UNIVERSAL 4-PORT)

ATARI SWITCH BOX ASSY (2-PORT)

Baiun Transformer

ATARI CX52 CONTROLLER ASSY (Pkgd.)

(ALL MODELS)

Flex Circuit Sc Key Pad Assy

Controller Cable Assy
Top Housing Assy
Pot Sc Arm Assy
Cable Pot Assy

CX5200 Field Service Manual 8-1

PART NO.

CA018174-01

CA021450-XX

CA018087

CA020108

CA019069
CA020161
CA012174
C AO 18218

CA018175-01

CAO 181 76-01

CA021452-XX

CA021374

CA020161

CAO 12174

A003647

CA021375

CA021 587-01

CA021588-XX

CA020803-Q1

CA0I8233-XX
CO 18994
CA0181Q7

CAO 18989

CAO 181 45
CA018223
CA018987
CA018988

Changed by
ECN #0036
6/21/83

LOCATION

DESCRIPTION

CX521 AC/DC POWER ADAPTOR (Pked.)

(ORIGINAL AND UNIVERSAL 4-PORT)

AC/DC POWER ADAPTOR (Not Pkgd.)
(ORIGINAL AND UNIVERSAL 4-PORT)

A.C. ADAPTOR ASSY (2-PORT)(PKGD.)

PART NO.

C018187

CA019141-XX

CA021673-XX

PC BOARD ASSY (MAIN) CAP 1 8087

(ORIGINAL 4-PORT)

NOTE: The Parts List for PC Board Assy (Main) Number CA020108 begins on page 8-5.
The Parts List for PC Board Assy (Main) Number CA021374 begins on page 8-8.

Cl, 2, 5, 7, 8, 15-17, 21, 23-29
34,47,60,73,86

Cap. Ceramic Axial .luF (50V)

C014181-03

C3, 4, 6, 12, 18, 22, 36, 49, 50

Cap. Ceramic Axial .OluF (50V)

C014180-18

Cap. Ceramic Axial lOOpF (50V)

CO 14 180-03

CIO, 31, 33, 55

Cap. Ceramic Axial 47pF (50V)

C014 179-05

Cl 1,20

Cap. Ceramic Axial lOpF (50V)

C01 4 179-03

C13,14

Cap. Polystyrene 820pF (25V)

C018621

C19, 99-106

Cap. Polyester Radial .047uF (100V)

C017518

C30,32

Cap. Ceramic Axial 68pF (50V)

C014179-12

C35

Cap. Ceramic Axial 22pF (50V)

CO!4 179-01

C37, 38, 40, 48, 51-54, 91-98,
107-110,124,126,131-135

Cap. Ceramic Axial .OOluF (50V)

C0141 80-17

C41,42, 119,144

Cap. Tantalum Axial lOuF (20V)

C017516

C43,44

Cap. Polyester Radial .22uF (100V)

C010394

C45

Cap. Elec Radial 4700uF (25V)

C016033

C56-59, 61 -72,74-85,87-90
112-115

Cap. Ceramic Axial 470pF (50 V)

C014179-16

Clll, 117, 118, 120-122, 125,
127,129,130,136

Cap. Ceramic Axial .luF (50V)

C014181-03

C116

Cap. Ceramic Axial .22uF (50V)

C014181-05

C138, 139, 141-143

Cap. Ceramic Axial .luF (50V)

C014181-03

C140

Cap. Ceramic Axial 33pF (50V)

C01 4 179-04

Resistor 1/4W 470K

14-5474

Resistor 1/4W 100K

14-5104

Resistor 1/4W 1 Meg

14-5105

R4-7, 15, 16,27,32,34-37,
47,55,56,60,69,124

Resistor 1/4W 4.7K

14-5472

Resistor Variable 500K

19-411504

Resistor 1/4W 91 Ohm

14-5910

R10, 17-21, 30, 39, 44, 50
59,66,96,101

Resistor 1/4W IK

14-5102

R1 1,14,68,131

Resistor 1/4W 220 Ohm

14-5221

R12,61

Resistor 1/4W 2.2K

14-5222

R13

Resistor 1/4W 240 Ohm

14-5241

R22,64

Resistor 1/4W 8.2K

14-5822

R23

Resistor 1/4W 82K

14-5823

R24

Resistor 1/4W 39K

14-5393

R25

Resistor 1/4W 20K

14-5203

R26,40

Resistor 1/4W 10K

14-5103

R28

Resistor 1/4W 3.3K

14-5332

CX5200 Field Service Manual

8-2

LOCATION

DESCRIPTION

PART NO.

PC BOARD ASSY (MAIN)(Continued) CA018Q87
(ORIGINAL 4-PORT)

R29,46

Resistor 1/4W 12K

14-5123

R31,43,65,125

Resistor 1/4W 6.8K

14-5682

R33

Resistor 1/4W 510 Ohm

14-5511

R41

Resistor 1/4W 18K

14-5183

R42

Resistor 1/4W 9.1 K

14-5912

R45

Resistor 1/4W 15K

14-5153

R48,49

Resistor 1/4W 47 K

14-5473

R51

Resistor 1/4W 10 Ohm

14-5100

R52

Resistor 1/4W 5.1 K

14-5512

R53

Resistor 1/4W 56 Ohm

14-5560

R54

Resistor 1/4W 560 Ohm

14-5561

R57,58

Resistor 1W 330 Ohm (Metal Film)

C01 81 88-02

R62,63

Resistor 1/4W 22K

14-5223

R67

Resistor 1/4W 150 Ohm

14-5151

R70-76, 78-95, 97-100,
102-105,114-121

Resistor 1/4W 470 Ohm

14-5471

R106-1 13

Resistor 1/4W 1.8K

14-5182

R122

Resistor 1/4W 22 Ohm

14-5220

R123

Resistor 1/4W 390 Ohm

14-5391

R126

Resistor 1/4W IK (Metal Film)

CO 1897 4-01

R128

Resistor 1/4W 3.3K (Metal Film)

C018974-03

R129,133

Resistor 1/4W 680 Ohm

14-5681

R130

Resistor 1/4W 1.5K (Metal Film)

C018974-02

R132 (Alternate listed)

Resistor Variable IK

C019103

R132 (Alternate for P/N
C019103)

Resistor Variable IK

CO 18975

IC CD4050B (HEX CMOS Buffer)

C010816

IC 6502 (Modified)

C014806

IC ANTIC

CO 12296

U4,15

IC 74LS244

C014313

IC GTIA

C014805

IC 74LS139N

CO 18032

IC POKEY

CO 12294

IC ROM OS

C019156

U9-13

IC 4052 (Analog multiplexer)

CO 17950

U14,28

IC 74LS10

CO 14339

U16,17

IC 74LS258N

C019052

U 18-25

IC RAM (16K X ID Single Supply)

CO 18082

U27

IC 74LS00

C014341

U29

IC 4013B (Dual Type D Flip Flop)

C014334

CR1-4

Diode 1N914 31-1 N914

Ql, 2, 5, 11, 15

Transistor 2N3906

CO 18991

Q3, 8-10, 12-14

Transistor 2N3904

34-2N3904

Transistor 34-2N3563

34-2N3563

Q6,7

Transistor M3E210

CO 18094

CX5200 Field Service Manual

8-3

Changed by
ECN #0036

6/21/83

LOCATION

DESCRIPTION

PART NO.

Y1 (Alternate listed)
Y1 (Alternate for P/N
C015510)

L4-6

L9, 11-16, 18
DS1

DS1 (Part of)
VR1,2 (Part of)

Port 1-4

XI, 6, 9-13, 16-25
X2,3,5,7
X4,15
X8

X14, 27-29
VR1,2

VR1,2 (Part of)

Crystal 3.579575 Mhz (HC-18) C015510

Crystal 3.579575 Mhz CO 1 0 1 77

PC BOARD ASSY (MAIN)(Continued) CA018087
(ORIGINAL 4-PORT)

Inductor Variable (0.85-1. 2uH)

C010823

Inductor Axial 2uH

C010822

Inductor Axial 4.7uH

CO 14804

Inductor Axial 22uH

C014380

Inductor Axial 2.7uH

C018189

Inductor Ferrite Bead

C014384

LED

C014776

LED Standoff

C018143

Voltage Regulator 78M05 (5V)

C014348

Switch Slide Channel Select

CO 12241

Switch Momentary Push Button

CO 18093

Connector Cartridge PC Board
Mount (18/36)

CO 18081

Connector Phono 3ack

CO 18245

Connector (15 pin)

C018013

Socket IC (16 pin)

C014386-03

Socket IC (40 pin)

C014386-09

Socket IC (20 pin)

CO 14386-05

Socket IC (24 pin)

C014386-07

Socket IC (14 pin)

C014386-02

Heatsink/Regulator Assy

CA019069

Heatsink

C018140

RF Modulator "B" Assy

CA012174

Cable Assy

CA0 18218

Shield Top

C019027

Shield Bottom

C019028

PC Board (32 mounted on

PC Board)

CO 18085

CX5200 Field Service Manual

8-4

LOCATION

DESCRIPTION

PART NO.

PC BOARD ASSY (MAIN)

(UNIVERSAL 4-PORT)

CA020108

5200 Universal PCB Assy

CA020108

Heatsink Assembly

CA020161

LED:DS1

C014776

LED Standoff

C018143

Shield Top

C019027

Shield Bottom

C019028

I.C. 4050B

CO 1081 6

I.C. Custom 6502

CO 14 80 6

I.C. Custom ANTIC

C012296-XX

I.C. Custom GTIA

C014805-XX

I.C. 74LS139N

CO 180323

I.C. Custom POKEY

C012294

I.C. ROM, O.S.

C019156

A9-13

I.C. Custom 4052, A9-13

C017950

A14

I.C. 74LS125

C016543

A15

I.C. 74LS51

C019671

A 16, 17

I.C. Custom 74LS258N

C019052

A18-25

I.C. 16KxlD RAM Single Supply

C018082

A26

I.C. Custom 4013B

C014334

A27

I.C. Custom 74LS00

C014341

01,2,7,8,15-17,

21,23-29,34,47,60

73,86,111,117,118,

121,122,125,127

129,130,136,137,

138,139,141,142,

143,147

Cap. Ceramic Axial 50V

C01481-03

C3,4,6,12,18,22

36,49,50

Cap. Ceramic Axial .OluF, 50V

C014180-18

Cap. Ceramic Axial, lOOpF, 50V

C01 4 180-03

CIO

Cap. Ceramic Axial, 47pF, 50V

C014179-05

011,20

Cap. Ceramic Axial, lOpF, 50V

C01 4 179-03

013,14

Cap. Polystyrene Auto,

Insertable, 820pF

C018261

019,99-106

Cap. Polyester Radial, .047uF,100V
Cap. Ceramic Axial, 39pF, 50V

C017518

030-33

CO 141 79-23

C35

Cap. Ceramic Axial, 22pF, 50V

C014 179-01

037,38,40,48,51

52-54, 91-98, 107-
nO, 124, 126, 131-
135

Cap. Ceramic Axial, .000 luF, 50V

C014180-17

C39

Cap. Ceramic Axial 68pF, 50V

C014179-12

041,42,119,144

Cap. Tantalum Axial lOuF, 20V

C017516

043,44

Cap. Polyester Radial, .22uF, 100V

CO 10394

C45

Cap. Electrolytic Radial, 47uF, 25V

C020121

055,145

Cap. Ceramic Axial, 390pF, 50V

C014179-24

CX5200 Field Service Manual

8-5

Changed by
ECN #0036

6/21/83

LOCATION

C56-59, 61-72, 74-
016
040

CRl-7,9-10

L4-6

L7, 9, 10, 12-15
L8

Ql, 2, 5, 11, 15
Q3, 8-10, 12-14

R4-7,15,16,27,32.

34-37,47,56,60,

124,136,55

RIO, 17-21,30,39

44,59,66,96,50

101,140,141

R1 1,14,68,131

R12,61,69,135

R13

R22,64

R23

R24

R25

R26,40

R28,142

R29, 46

R31,43,65,125

R41

R42

R45

R48,49

R51,137

R52

R53

R54

DESCRIPTION

PC BOARD ASSY (MAIN) (Continued)
(UNIVERSAL 4-PORT)

■85 Cap. Ceramic Axial, 470pF, 50V

Cap. Ceramic Axial, .22uF, 50V
Cap. Ceramic Axial, 33pF, 50V
Diode: 1N914

Cartridge PCB Mount: 18/36 Contacts
3ack, Phono, RF Output, PC Mounted
Connector 15 Pin "D" Sub Port 1-4

Inductor Radial Variable:

.85-1. 2uH, 12.5 Turn
Inductor Axial: 2uH
Inductor Axial: 2.7uH
Inductor Axial: 22uH
Ferrite Bead
Inductor Axial 2.7uH

Transistor Power PNP:M3E
Transistor 2N3904
Transistor 2N3563

Carbon Film Resistor 470K Ohm, 1/4W
Carbon Film Resistor 100K Ohm, 1/4W
Carbon Film Resistor 1 MEG Ohm,l/4W
, Carbon Film Resistor 4.7K Ohm 1/4W

Resistor, Pot: 500K, 1/4W
Carbon Film Resistor IK Ohm, 1/4W

Carbon Film Resistor 220 Ohm, 1/4W
Carbon Film Resistor 2.2K Ohm, 1/4W
Carbon Film Resistor 240 Ohm, 1/4W
Carbon Film Resistor 8.2K Ohm, 1/4W
Carbon Film Resistor 82K Ohm, 1/4W
Carbon Film Resistor 39K Ohm, 1/4W
Carbon Film Resistor 20K Ohm, 1/4W
Carbon Film Resistor 10 K Ohm, 1/4W,
Carbon Film Resistor 3.3K Ohm, 1/4W
Carbon Film Resistor 12K Ohm, 1/4W
Carbon Film Resistor 6.8K Ohm, 1/4W
Carbon Film Resistor 18K Ohm 1/4W,
Carbon Film Resistor 9. IK Ohm 1/4W,
Carbon Film Resistor 15K Ohm 1/4W
Carbon Film Resistor 47K Ohm 1/4W
Carbon Film Resistor 10 Ohm 1/4W,
Carbon Film Resistor 5.1 K Ohm, 1/4W
Carbon Film Resistor 56 Ohm 1/4W
Carbon Film Resistor 560 Ohm, 1/4W

PART NO.

CA020108

CO 14179-16
C014181-05
CO 141 79-04
31-1N914

C018081
CO 18245
CO 1 80 1 3

CO 10823

CO 10822
CO 17224
C014380
CO 14384
CO 181 89

33- 2N3906

34- 2N3904
34-2N3563

14-5474

14-5104

14-5105

14-5472

19-411504

14-5102

14-5221

14-5222

14-5241

14-5822

14-5823

14-5393

14-5203

14-5103

14-5332

14-5123

14-5682

14-5183

14-5912

14-5153

14-5473

14-5100

14-5512

14-5560

14-5561

CX5200 Field Service Manual

8-6

LOCATION

DESCRIPTION

PART NUMBER

PC BOARD ASSY (MAIN) (Continued)
(UNIVERSAL 4-PORT)

CA020108

R57,58

Carbon Metal Film 182 Ohm, 1W

CO 181 88-01

R62,63

Carbon Film Resistor 22K Ohm, 1/4W
Carbon Film Resistor 150 Ohm, 1/4W

14-5223

R67

14-5151

R70

Carbon Film Resistor 1.5K Ohm, 1/4W

14-5152

R71-76,78-95,97-
100,102-105,1 14-
121

Carbon Film Resistor 470 Ohm 1/4W

14-5471

R106-1 13

Carbon Film Resistor 1.8K Ohm, 1/4W
Carbon Film Resistor 22 Ohm, 1/4W

14-5182

R122

14-5220

R123

Carbon Film Resistor 390 Ohm, 1/4W

14-5391

R126

Carbon Metal Film IK Ohm, 1/4W

CO 18974-01

R128

Carbon Metal Film 3.3K Ohm, 1/4W

CO 18974-03

R129

Carbon Film Resistor 680 Ohm, 1/4W

14-5681

R130

Carbon Metal Film 1.5K Ohm, 1/4W

C01 9874-02

R132

Resistor, Trim Pot: IK Ohm

C019103-XX

R134

Carbon Film Resistor 100 Ohm, 1/4W

14-5101

Switch, Slide: Chan. Sel. Side Arm

C012241

Switch, SPDT, Momentary,

Push Button ON/OFF

C018093-XX

Modulator, RF "B"

CA012174

XA1, 6, 9-13, 16, 17,

18-25

Socket I.C. 16 Pin

C014386-03

XA2,3,5,7

Socket I.C. 40 Pin

C014386-09

XA8

Socket I.C. 24 Pin

C014386-07

XA14,15,26,27

Socket I.C. 14 Pin

C014386-02

Y 1

Crystal 3.579575 MHz

C010177-XX

CX5200 Field Service Manual 8-7 Changed by

ECN #0036
6/21/83

LOCATION

DESCRIPTION

PART NUMBER

PC BOARD ASSY (MAINX2-PORT)

CA021374

I.C. 4050B

C010816

I.C. Custom 6502

C014806

I.C. Custom Antic

C012296-XX

I.C. Custom GTIA

C014805-XX

I.C. 74LS139N

C018032

I.C. Custom POKEY

C012294

I.C. ROM O.S.

CO 1 9 1 56

A9-11

I.C. 4052

CO 179 50

A14

I.C. 74LS125

C016543

A15

I.C. 74LS51

CO 19671

A 16, 17

I.C. 74LS258N

C019052

A 18-25

I.C. RAM 16K X ID Single Supply

CO 18082

A26

I.C. 4013B

C014334

A27

I.C. 74LS00

C014341

Power 3ack, Rt Angle

C014715

Heatsink Assembly

CA020161

Modulator, RF "B"

CA012174

Resistor, POT, 500K, 1/4W

19-411504

R132

Resistor, Trim POT, IK

C019103-XX

Switch, Slide Channel Select Side Arm

C019702-XX

Switch, SPDT, Mmntry Psh Btn, On/Off

C018093-XX

Pop Rivets

C014796

Shield Top

C019027

Shield Bottom

C019028

C 1,2,5,7,8,15-17,

Cap, Ceramic Axial, .luf, 25V

C0141 81-03

21,23-29,34,47,60,

61,73,86,117,137,121,

122,125,127,129,130,

136,141,138,139,142,

143,147

C3, 4, 6, 12, 18, 22, 36,

Cap, Ceramic Axial, .Oluf, 50V

C014180-18

49,50

Cap, Ceramic Axial, lOOpf, 50V

C014180-03

CIO

Cap, Ceramic Axial, 47pf, 50V

C014179-05

Cl 1,20

Cap, Ceramic Axial, lOpf, 50V

CO 14 179-03

C13-14

Cap, Polystyrene Auto Insertable,

C018261

820pf, 25V

C19,99, 100,105, 106

Cap, Polyester Radial, .047uf, 100 V

C017518

C30-33

Cap, Ceramic Axial, 39pf, 50V

CO 14 179-23

C35

Cap, Ceramic Axial, 22pf, 50V

C014179-01

C37, 38, 40, 48, 51, 54,

Cap, Ceramic Axial, .00 luf, 50V

C014180-17

91,92,97,98,107,

112,124,126,131,

132,135

CX5200 Field Service Manual

8-8

LOCATION

DESCRIPTION

PART NUMBER

PCB SUB-ASSY (2-PORT)

CA021375

C39

Cap, Ceramic Axial, 68pf, 50V

C014179-12

C41, 42,119, 144

Cap, Tantalum Axial, lOuf

C017516

C43,44

Cap, Polyester Radial, .22uf, 100V

C010394

C45

Cap, Electrolytic Radial, 47uf, 25V

C020121

C56-59, 69-72, 74-

Cap, Ceramic Axial, 470pf, 50V

C014179-16

77,87-90,110,115

Cl 1 6

Cap, Ceramic Axial, .22uf, 50V

C014181-05

C140

Cap, Ceramic Axial, 33pf, 50 V

C014179-04

C145,55

Cap, Ceramic Axial, 390pf, 50V

C014179-24

Res., Carbon Film, 470K Ohm, 1 /»W

14-5474

Res., Carbon Film, 100K Ohm, 1/4W

14-5104

Res., Carbon Film, 1 Meg Ohm, 1/4W

14-5105

R4-7, 16,27,32,34-

Res., Carbon Film, 4.7K Ohm, 1/4W

14-5472

37,47,55,56,60,124,

136

Res., Carbon Film, 91 Ohm, 1/4W

14-5910

RIO, 17-21, 30, 39

Res., Carbon Film, IK Ohm, 1/4W

14-5102

44,59,66,50,101

140,141

R1 1,14,68,131

Res., Carbon Film, 220 Ohm, 1/4W

14-5221

R12,61,69,135

Res., Carbon Film, 2.2K Ohm, 1/4W

14-5222

R13

Res., Carbon Film, 240 Ohm, 1/4W

14-5241

R22,64

Res., Carbon Film, 8.2K Ohm, 1/4W

14-5822

R23

Res., Carbon Film, 82K Ohm, 1/4W

14-5823

R24

Res., Carbon Film, 39K Ohm, 1/4W

14-5393

R25

Res., Carbon Film, 20K Ohm, 1/4W

14-5203

R26,40

Res., Carbon Film, 10K Ohm, 1/4W

14-5103

R28,142

Res., Carbon Film, 3.3K Ohm, 1/4W

14-5332

R29,46

Res., Carbon Film, 12K Ohm, 1/4W

14-5123

R31,43,65,125

Res., Carbon Film, 6.8K Ohm, 1/4W

14-5682

R33

Res., Carbon Film, 510 Ohm, 1/4W

14-5511

R41

Res., Carbon Film, 18K Ohm, 1/4W

14-5183

R42

Res., Carbon Film, 9.1K Ohm, 1/4W

14-5912

R45

Res., Carbon Film, 1 5K Ohm, 1 /4W

14-5153

R48,49

Res., Carbon Film, 47K Ohm, 1/4W

14-5473

R51,137

Res., Carbon Film, 10 Ohm, 1/4W

14-5100

R52

Res., Carbon Film, 5.1 K Ohm, 1/4W

14-5512

R53

Res., Carbon Film, 56 Ohm, 1/4W

14-5560

R54

Res., Carbon Film, 560 Ohm, 1/4W

14-5561

R57,58

Res., Carbon Metal Film, 330 Ohm, 1W

C018188-02

R62,63

Res., Carbon Film, 22K Ohm, 1/4W

14-5223

R67

Res., Carbon Film, 150 Ohm, 1/4W

14-5151

R70

Res., Carbon Film, 1.5K Ohm, 1/4W

14-5152

CX5200 Field Service Manual 8-9

Changed by
ECN #0036
6/21/83

LOCATION

DESCRIPTION

PART NUMBER

PCB SUB-ASSY (2-PORT) (Continued)

CA021375

R71-74, 80-84,
88-91,102-105,
114,117,118,121

Res., Carbon Film, 470 Ohm, 1/4W,

14-5471

R106, 109,1 10,113

Res., Carbon Film, 1.8K Ohm, 1/4W

14-5182

R122

Res., Carbon Film, 22 Ohm, 1/4W

14-5220

R123

Res., Carbon Film, 390 Ohm, 1/4W

14-5391

R126

Res., Carbon Metal Film, IK Ohm, 1/4W

CO 18974-01

R128

Res., Carbon Metal Film, 3.3K Ohm, 1/4W

CO 1987 4-03

R129

Res., Carbon Film, 680 Ohm, 1/4W

14-5681

R130

Res., Carbon Metal Film, 1.5K Ohm, 1/4W

CO 1897 4-02

R133,134

Res., Carbon Film, 100 Ohm, 1/4W

14-5101

Cartridge, PCB Mnt, 18/36 Contacts

C018081

Connector, 15 Pin "D" Sub Port 1-2

CO 1 80 1 3

Y 1

Crystal, 3. 579575 MHz + 120 HZ

CO 155 10

CR1-10

Diode, 1N914

31-1N914

DS1

LED

CO 14776

LED Standoff

CO 181 43

Inductor Radial Variable, .85-1.2uH

12.5 Turn

C010823

Inductor Axial, 2uH

C010822

Inductor Axial, 2.7uH

C017224

L4-6

Inductor Axial, 22uH

C014380

L9, 7, 12-15, 10

Ferrite Bead

C014384

Jack, Phono, RF Output, PC Mounted

79-5903

XA1, 6, 9-11, 16, 17,

18-25

Socket, I.C., 16 Pin

C014386-03

XA2,3,5,7

Socket, I.C., 40 Pin

C014386-09

XA8

Socket, I.C., 24 Pin

CO 14386-07

XA14,15,27,26

Socket, I.C., 14 Pin

C014386-02

Ql, 2, 5, 11, 15

Transistor, 2N3906

33-2N3906

Q3, 8, 9, 10,12,13,14

Transistor, 2N3904

34-2N3904

Transistor, 2N3563

34-2N3563

Q6,7

Transistor Power PNP, MJE 210

C018094

PCB

C021376

CX5200 Field Service Manual

8-10

LOCATION

DESCRIPTION

PART NUMBER

TOP HOUSING ASSY

(ORIGINAL AND UNIVERSAL 4-PORT)

Housing Top

Button (Power ON/OFF)

ATARI Logo Name Plate
Spring (Power ON/OFF)

Connector Cover

TOP HOUSING AS5Y(2-PORT)

Connector Cover
Top Housing
Name Plate
Button
Spring

BASE ASSY

(ORIGINAL AND UNIVERSAL 4-PORT)

Rubber Feet

Housing Bottom

Cartridge Door Rear

Housing Cord Wrap

Cover Controller

BASE ASSY(2-PORT)

Bottom Housing

Rubber Feet

Rear Cartridge Door

Label, FCC

ATARI VCS CX5200

ATARI CX52 CONTROLLER ASSY

(ALL MODELS)

Top Housing
Bottom Housing
Top Bezel
Side Bezel
Top Actuator Plate
Bottom Actuator Plate
Slide Block
Boot

Retaining Ring
Pivot Shaft
Knob

Support Plate (Keyboard)

Flex Circuit
12 Key Switch Set
2 Fire Button Switch Set
Auxiliary Function Keys

CX5200 Field Service Manual 8-11

CA018175-QI

CO 181 31
C018137
C018141
C018144
CO 18951

CA021 587-01

C021353

CA021362

C018141

C018137

C018144

CA018176-01

88-1006
C018132
C018139
C018218
CO 18952

CA021588-XX

C018132

88-1006

C018139

C019107

CA018174-01

CAP 181 07

C018108
C018109
C018110
C018111
C018112
C018113
CO 181 14
CO 181 15
C018116
CO 181 20
C018121
CO 181 23
CO 181 24
C018126
C020501
C018128

Changed by
ECN #0036
6/21/83

LOCATION

DESCRIPTION

PART NO.

Controller Cable Assy

CA018145

Top Housing Assy

CA018223

Pot 6c Arm Assy

CA018987

Cable Pot Assy

CA018988

TRAKBALL ASSY (CX53)

(ALL MODELS)

CA020I94

Top Housing Assy

CA020197

Bottom Housing Assy

CA020198

Lower PCB Assy

CA020140

Roller Shaft Assy

CA020583

Cable Assy

CA020338

Top Housing Assy

CA020197

Top Housing

C020195

Name Plate

C020193

1 2-Key Switch Set

C018126

Fire Button

C020192

Auxiliary Function Keys

C018128

Upper PCB Assy

CA020287

Spring

CO 12951

Bottom Housing Assy

CA0201 98

Bottom Housing

C021096

Roller Shaft Assy

CA020583

Idler Shaft Assy

CA020582

Ball, 2 1/4" Diameter

C020191

Feet, rubber

88-1006

Lower PCB Sub- Assy

CA020141

Shaft, Roller

C020572

Encoding Wheel

C020571

Bearing

C020190

Lower PCB Assy

CA020140

Cap, Electrolytic Radial lOuf 16V

C014392

Cap, Ceramic Axial .luf 50V

CO 14 180-19

C3,4

Cap, Ceramic Axial 470pf 50V

C014180-07

C5,6,7,8

Cap, Mylar Radial: .luf, 100V

CO 17885

Cap, Ceramic Axial: .01 uf 50V

C014180-1 8

CIO

Cap, Ceramic Axial: .22uf 50V

CO 141 81 -05

Rl-4

Resistor: 3K 1/4W

14-5302

R5,6

Resistor: 12K, 1/4W

14-5123

R7, 26-29

Resistor: 10K 1/4W

14-5471

Resistor: IK 1/4W

14-5102

R9-12

Resistor: 2.2K 1/4W

14-5222

R13-16

Resistor; 1.3K 1/4W

14-5132

R17,19

Resistor: 43K 1/4W

14-5433

R 18-20

Resistor: 30K 1/4W

14-5303

R21,22

Resistor: 1 80K 1/4W

14-5184

R23,24

Resistor: 240 Ohm 1/4W

14-5241

CX5200 Field Service Manual

8-12

SECTION 9

SERVICE BULLETINS

This section is to be used by you to file the three classifications of service bulletins
that are periodically released by the Director of Technical Support.

The following are brief descriptions of each classification:

FIELD CHANGE ORDER

A Field Change Order describes mandatory hardware or software changes to ATARI
Computer products and instructs how to implement these changes. The changes must
be performed on all units serviced or repaired.

UPGRADE BULLETIN

An Upgrade Bulletin describes product improvements or modifications that the
consumer may wish to purchase. These bulletins allow you to modify the customer's
unit to add capabilities which may not have been available when the unit was originally
manufactured.

TECH TIP

A Tech Tip is a document of a general nature which transmits routine service or repair
information. By communicating methods developed since you attended training
classes, Tech Tips aid to continuously improve repair skills and increase knowledge of
ATARI Computer Products.

Other times, Tech Tips alert you to units that have been modified and are now
standard for ATARI Manufacturing, but are different from many existing units and
require different repair techniques.

CX5200 Field Service Manual

9-1

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